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A303099 Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1

%I #4 Apr 18 2018 12:36:01

%S 3,161,2913,58160,1138331,22292709,436394066,8545589681,167325743073,

%T 3276397352974,64154700406471,1256205180765473,24597599305382336,

%U 481642558107218459,9430983527094262675,184666925800707714070

%N Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%C Column 5 of A303102.

%H R. H. Hardin, <a href="/A303099/b303099.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A303099/a303099.txt">Empirical recurrence of order 90</a>

%F Empirical recurrence of order 90 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A303102.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 18 2018

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Last modified July 14 05:06 EDT 2024. Contains 374291 sequences. (Running on oeis4.)