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A300934 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Mar 16 2018 08:55:04

%S 16,138,412,1534,6220,21787,77434,287515,1062023,3895316,14409626,

%T 53456291,197797723,732348580,2715286164,10066456755,37323145513,

%U 138451984116,513710107898,1906237786210,7074744554297,26260602575051

%N Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Column 5 of A300937.

%H R. H. Hardin, <a href="/A300934/b300934.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300937.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 16 2018

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Last modified August 8 04:35 EDT 2024. Contains 375018 sequences. (Running on oeis4.)