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A233849 Number of (4+2)X(n+2) 0..3 arrays with no increasing sequence of length 3 horizontally or antidiagonally downwards 1
35508588544, 71859538054209, 149185819914631168, 309991751661980537856, 643933077220405949855104, 1337639370477641609476513601, 2778494368410413165502002015104, 5771547950513751654005648066705136 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 4 of A233845
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..47
EXAMPLE
Some solutions for n=1
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..1....0..0..1....0..0..0....0..0..0....0..0..0....0..0..0....0..0..1
..0..0..1....1..2..1....0..1..1....1..2..2....0..2..2....0..0..3....0..1..0
..3..2..3....2..2..2....1..3..1....0..3..2....0..3..0....0..0..3....1..3..0
..1..0..3....1..0..0....0..3..1....2..3..3....1..3..2....0..0..3....3..2..1
CROSSREFS
Sequence in context: A115498 A115502 A022262 * A370486 A116279 A369689
Adjacent sequences: A233846 A233847 A233848 * A233850 A233851 A233852
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 16 2013
STATUS
approved

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Last modified August 30 07:09 EDT 2024. Contains 375532 sequences. (Running on oeis4.)