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A183614
1/120 the number of (n+1)X(n+1) 0..4 arrays with every 2X2 subblock containing four distinct values
0
1, 56, 7792, 2708848, 2359936032, 5165337368432, 28435992292698928
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A183622
LINKS
Table of n, a(n) for n=1..7.
EXAMPLE
Some solutions with the first square being 0123 for 3X3
..0..1..4....0..1..4....0..1..0....0..1..0....0..1..0....0..1..4....0..1..2
..2..3..0....2..3..0....2..3..2....2..3..4....2..3..2....2..3..2....2..3..4
..1..4..2....4..1..4....0..4..0....1..0..2....1..0..1....0..1..0....4..1..2
CROSSREFS
Sequence in context: A201240 A329104 A233428 * A082167 A006690 A202922
Adjacent sequences: A183611 A183612 A183613 * A183615 A183616 A183617
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 06 2011
STATUS
approved

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Last modified October 4 23:47 EDT 2024. Contains 376525 sequences.
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