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A298453 Number of nX7 0..1 arrays with every element equal to 1, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero. 1
0, 240, 204, 15248, 206239, 4095727, 112275165, 2871621220, 62756244756, 1680472622565, 43197208627165, 1038517293951991, 26665044675200600, 682574655104085964, 16923243467936517267, 429230559842341481820 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 7 of A298454.
LINKS
EXAMPLE
Some solutions for n=4
..0..0..1..1..1..1..1. .0..0..0..0..0..1..1. .0..0..0..0..0..0..0
..1..1..1..1..1..0..0. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0
..1..1..0..0..1..1..1. .1..1..0..1..1..0..0. .0..1..1..1..1..0..1
..1..1..0..0..1..1..1. .1..1..0..1..1..1..1. .1..0..1..1..1..0..1
CROSSREFS
Cf. A298454.
Sequence in context: A278179 A100748 A072235 * A121378 A191533 A299527
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 19 2018
STATUS
approved

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Last modified July 20 04:43 EDT 2024. Contains 374441 sequences. (Running on oeis4.)