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A301845 Number of 5Xn 0..1 arrays with every element equal to 0, 1 or 2 horizontally or antidiagonally adjacent elements, with upper left element zero. 1

%I #6 Mar 27 2018 14:37:28

%S 16,512,4299,48802,496085,5240684,54948498,577194574,6070236888,

%T 63855283956,671950959732,7071734560895,74426242914307,

%U 783303529316947,8243938456863301,86764009232555716,913155201853131784

%N Number of 5Xn 0..1 arrays with every element equal to 0, 1 or 2 horizontally or antidiagonally adjacent elements, with upper left element zero.

%C Row 5 of A301841.

%H R. H. Hardin, <a href="/A301845/b301845.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A301845/a301845.txt">Empirical recurrence of order 99</a>

%F Empirical recurrence of order 99 (see link above)

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A301841.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 27 2018

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Last modified March 29 04:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)