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A297956 Number of nX5 0..1 arrays with every element equal to 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 09 2018 07:55:51

%S 3,23,47,233,681,2596,11623,39801,149442,616286,2335635,8904387,

%T 34861648,135228611,521631430,2019356359,7839971399,30360460809,

%U 117476386060,455396350820,1764702754346,6833651832659,26474646322752,102580295118751

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

%C Column 5 of A297959.

%H R. H. Hardin, <a href="/A297956/b297956.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=7

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

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

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

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

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

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

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

%Y Cf. A297959.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 09 2018

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Last modified April 19 06:16 EDT 2024. Contains 371782 sequences. (Running on oeis4.)