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A298557 Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero. 1

%I #4 Jan 21 2018 08:03:27

%S 3,174,796,4304,24364,138774,781071,4432262,25124403,142234863,

%T 806138743,4569541386,25893792606,146748270319,831716656289,

%U 4713611192492,26713984720758,151401393855722,858059003257182,4863005923218672

%N Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.

%C Column 5 of A298560.

%H R. H. Hardin, <a href="/A298557/b298557.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=6

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

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

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

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

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

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

%Y Cf. A298560.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 21 2018

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Last modified April 23 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)