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A297950 Number of n X 7 0..1 arrays with every element equal to 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero. 1

%I #6 Dec 30 2023 21:48:10

%S 8,2048,11614,88441,750733,6423236,53630550,451993176,3822668362,

%T 32280441976,272629391142,2304614292374,19479506089623,

%U 164635199364476,1391603138141113,11763053589275172,99430718267953488,840477009021797422

%N Number of n X 7 0..1 arrays with every element equal to 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero.

%C Column 7 of A297951.

%H R. H. Hardin, <a href="/A297950/b297950.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A297951.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 09 2018

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Last modified April 16 07:57 EDT 2024. Contains 371698 sequences. (Running on oeis4.)