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A297807 Number of 7 X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 5 neighboring 1's. 1

%I #6 Jan 20 2024 18:21:18

%S 1,69,10287,104985,2174696,91376524,3420197908,94927605755,

%T 2945816737574,99198658175214,3238876596856894,102656828606240489,

%U 3303272683839553667,107246494100102584720,3463595416929051369500,111526884982514579379392

%N Number of 7 X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 5 neighboring 1's.

%C Row 7 of A297802.

%H R. H. Hardin, <a href="/A297807/b297807.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

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

%Y Cf. A297802.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 06 2018

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Last modified September 9 21:41 EDT 2024. Contains 375765 sequences. (Running on oeis4.)