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A302874
Number of nX5 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
8, 31, 72, 306, 1197, 4849, 23037, 114810, 603229, 3319946, 18585700, 105379875, 603107047, 3467522323, 19998520262, 115602617979, 669078024352, 3875760664026, 22464758703891, 130258464383067, 755475828119163
OFFSET
1,1
COMMENTS
Column 5 of A302877.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..0. .0..1..1..0..0. .0..1..0..1..1. .0..1..0..0..0
..0..0..1..1..0. .1..1..1..1..1. .0..1..1..0..1. .1..1..0..1..0
..0..1..0..1..0. .1..1..1..0..1. .1..0..1..0..1. .1..1..1..1..0
..0..1..0..1..0. .0..1..1..0..1. .1..0..1..0..1. .1..1..0..0..0
..0..1..1..0..0. .0..1..0..1..1. .1..1..1..0..1. .0..1..0..1..0
CROSSREFS
Cf. A302877.
Sequence in context: A303037 A230386 A022273 * A061294 A240707 A115293
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 15 2018
STATUS
approved