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A296127 Number of nX7 0..1 arrays with each 1 adjacent to 2 or 5 king-move neighboring 1s. 1

%I #4 Dec 05 2017 06:48:04

%S 1,121,553,2463,35733,263489,1810441,16855693,138016847,1087543621,

%T 9228070694,76704166206,628908321069,5245176224753,43644001864720,

%U 361707709471024,3008980635521615,25033019588307299,208047564104356544

%N Number of nX7 0..1 arrays with each 1 adjacent to 2 or 5 king-move neighboring 1s.

%C Column 7 of A296128.

%H R. H. Hardin, <a href="/A296127/b296127.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

%e ..0..0..0..0..1..1..0. .0..1..0..0..0..0..0. .0..0..1..1..0..0..0

%e ..0..1..1..0..1..0..0. .1..1..0..0..0..0..0. .0..1..0..0..1..0..0

%e ..1..0..0..1..1..1..1. .0..0..0..0..0..0..0. .0..1..0..0..0..1..0

%e ..0..1..0..1..1..0..1. .0..1..1..0..0..1..1. .0..1..0..1..1..0..0

%e ..0..0..1..0..1..0..0. .0..0..1..0..0..1..0. .0..0..1..0..0..0..0

%Y Cf. A296128.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 05 2017

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Last modified February 26 04:47 EST 2024. Contains 370335 sequences. (Running on oeis4.)