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A305639 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 6 king-move adjacent elements, with upper left element zero. 1

%I #4 Jun 07 2018 08:59:48

%S 16,94,255,1516,8734,48567,282463,1774950,11228442,70910634,457532212,

%T 2961818801,19161856034,124734623018,812517208743,5292463879491,

%U 34538146713972,225412286656429,1471173825589666,9607289878561764

%N Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

%C Column 5 of A305642.

%H R. H. Hardin, <a href="/A305639/b305639.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A305642.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 07 2018

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Last modified March 28 13:25 EDT 2024. Contains 371254 sequences. (Running on oeis4.)