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A278003 Number of nX5 0..2 arrays with every element plus 1 mod 3 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0), with upper left element zero. 1

%I #4 Nov 08 2016 08:36:05

%S 0,2523,316432,49996267,7830217270,1224179323009,191436065235070,

%T 29936909309888730,4681528466250468887,732096821544231764711,

%U 114485218940550802190010,17903185312984486462067629

%N Number of nX5 0..2 arrays with every element plus 1 mod 3 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0), with upper left element zero.

%C Column 5 of A278006.

%H R. H. Hardin, <a href="/A278003/b278003.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..0..1..0..0..1. .0..2..0..1..1. .0..1..1..0..2. .0..2..1..2..0

%e ..2..2..2..2..2. .1..0..2..2..0. .2..2..2..0..2. .1..1..1..0..1

%Y Cf. A278006.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 08 2016

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Last modified February 23 08:34 EST 2024. Contains 370272 sequences. (Running on oeis4.)