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A297975 Number of nX5 0..1 arrays with every element equal to 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 10 2018 06:53:33

%S 0,17,124,1042,18037,242401,3565760,52222182,765460393,11253972992,

%T 165400929373,2431933880974,35759258361744,525820993876810,

%U 7732091729068983,113699273672915816,1671937140248538469

%N Number of nX5 0..1 arrays with every element equal to 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.

%C Column 5 of A297978.

%H R. H. Hardin, <a href="/A297975/b297975.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A297978.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 10 2018

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