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Search: a298846 -id:a298846
Displaying 1-4 of 4 results found.
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A298843
Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.
+10
1
3, 166, 424, 1446, 5101, 18191, 62393, 214017, 735090, 2521128, 8674496, 29900417, 103081768, 355521461, 1226654477, 4233860529, 14618644242, 50489092706, 174414948926, 602632498696, 2082528838007, 7197611462672, 24879153769164
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A298846.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=7
..0..0..0..0..0. .0..1..0..1..0. .0..1..1..1..0
..0..1..1..1..0. .1..0..0..0..1. .1..0..1..0..1
..1..0..1..0..1. .0..0..0..0..0. .0..1..1..1..0
..0..1..1..1..0. .1..0..0..0..1. .1..1..1..1..1
..1..1..1..1..1. .0..1..0..1..0. .0..1..1..1..0
..0..1..1..1..0. .1..0..0..0..1. .1..0..1..0..1
..1..0..1..0..1. .1..1..1..1..1. .0..1..1..1..0
CROSSREFS
Cf. A298846.
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 27 2018
STATUS
approved
A298844
Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.
+10
1
5, 573, 1274, 4648, 18191, 74685, 290474, 1134326, 4476521, 17504192, 68460956, 268946027, 1056908182, 4152467108, 16322047853, 64182331628, 252466069300, 993456216706, 3910523487359, 15397203073949, 60640330684857
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A298846.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=6
..0..1..1..0..0..0. .0..0..0..1..0..1. .0..1..0..1..0..1. .0..0..1..1..1..0
..1..0..1..1..1..0. .0..1..1..1..1..0. .1..0..0..0..1..0. .0..1..0..1..0..1
..1..1..1..1..1..0. .0..1..1..1..1..1. .0..0..0..0..0..0. .1..0..1..1..1..0
..1..0..1..1..1..1. .1..1..1..1..1..0. .1..0..0..0..1..0. .1..1..1..1..1..1
..0..1..0..1..0..1. .0..1..1..1..1..0. .0..1..0..1..0..1. .1..0..1..1..1..0
..0..0..1..1..1..0. .1..0..1..0..0..0. .1..0..0..0..1..1. .0..1..0..1..0..1
CROSSREFS
Cf. A298846.
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 27 2018
STATUS
approved
A298845
Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.
+10
1
8, 1933, 3820, 14888, 62393, 290474, 1276034, 5745665, 26250580, 117940632, 529830532, 2398014801, 10851357559, 49048617886, 221887809644, 1004033294806, 4542287520456, 20553927069804, 93029936095342, 421086056398025
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A298846.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=5
..0..1..0..1..0..1..0. .0..0..1..0..1..0..1. .0..1..0..1..0..1..1
..1..0..1..1..1..0..1. .0..1..0..1..1..1..0. .1..0..0..0..1..0..1
..1..1..1..1..1..1..1. .0..1..1..1..1..1..1. .0..0..0..0..0..0..1
..1..0..1..1..1..0..1. .0..1..0..1..1..1..0. .1..0..0..0..1..0..1
..0..1..0..1..0..1..0. .0..0..1..0..1..0..1. .0..1..0..1..0..1..1
CROSSREFS
Cf. A298846.
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 27 2018
STATUS
approved
A298842
Number of n X n 0..1 arrays with every element equal to 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.
+10
0
0, 4, 48, 466, 5101, 74685, 1276034, 30242236, 1056423010, 50039513246, 3406811335705, 353276120560238, 52792202092264104
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A298846.
LINKS
Table of n, a(n) for n=1..13.
EXAMPLE
Some solutions for n=6
..0..1..0..1..0..1. .0..1..0..1..0..1. .0..0..0..1..0..1. .0..1..1..1..0..0
..1..0..1..1..1..0. .1..0..0..0..1..0. .0..1..1..1..1..0. .1..0..1..0..1..0
..1..1..1..1..1..1. .0..0..0..0..0..0. .0..1..1..1..1..1. .1..1..1..1..0..1
..1..0..1..1..1..0. .1..0..0..0..1..0. .1..1..1..1..1..0. .0..1..1..1..1..1
..0..1..0..1..0..1. .0..1..0..1..0..1. .0..1..1..1..1..0. .0..1..1..1..0..1
..0..0..1..1..1..0. .1..0..0..0..1..1. .1..0..1..0..0..0. .0..0..0..1..1..0
CROSSREFS
Cf. A298846.
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 27 2018
STATUS
approved
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