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A267334 Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any southwest or northwest neighbors modulo 5 and the upper left element equal to 0. 0

%I #5 Aug 12 2016 06:54:00

%S 24,0,0,0,1,30,1929,39176,359300,2137958,8673978,28057788,85957339,

%T 458944852,5886421812,90849742097,1176923389969,12082727920233,

%U 99048629549120

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

%C Row 5 of A267328.

%e Some solutions for n=6

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

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

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

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

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

%Y Cf. A267328.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 13 2016

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Last modified April 17 21:22 EDT 2024. Contains 371767 sequences. (Running on oeis4.)