A267657 - OEIS

A267657

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

1, 3, 21, 221, 1811, 13359, 129319, 1586523, 18730678, 199349073, 2099779009, 24121529923, 295646288820, 3584583743925, 42093020236586, 495027849517287, 6012600565537213, 74749463188676255

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OFFSET

1,2

COMMENTS

Row 5 of A267655.

LINKS

Table of n, a(n) for n=1..18.

EXAMPLE

Some solutions for n=7

..0..1..2..3..4..1..2....0..0..2..3..3..4..1....0..0..2..3..4..0..1

..1..2..3..4..0..1..3....0..1..3..3..4..0..1....0..1..3..4..0..1..1

..1..3..4..0..1..2..4....0..2..3..4..4..1..2....1..2..3..4..0..1..2