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Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any west or southwest neighbors modulo 5 and the upper left element equal to 0.
0

%I #5 Aug 12 2016 06:54:01

%S 24,2,3,3,55,1326,27712,392186,4032703,32764364,226023332,1430681509,

%T 9543107724,82643484977,972268357237,12735190843783,158717662004902,

%U 1789867783195227

%N Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any west or southwest neighbors modulo 5 and the upper left element equal to 0.

%C Row 5 of A267562.

%e Some solutions for n=5

%e ..0..0..1..2..3....0..1..1..2..3....0..1..2..2..3....0..1..2..3..4

%e ..0..1..2..3..4....0..0..1..2..3....0..1..2..3..4....0..1..2..3..4

%e ..1..1..2..3..4....0..1..2..3..4....1..2..3..4..0....0..1..2..3..4

%e ..1..2..3..4..0....1..2..3..4..0....2..3..4..0..1....1..2..3..4..0

%e ..2..3..4..4..0....2..3..4..4..4....3..4..4..0..1....1..2..3..4..0

%Y Cf. A267562.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 17 2016