A230570 Number of nX7 0..4 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 5, and upper left element zero

0, 8, 9088, 2541242, 615786708, 145982711348, 34266592666538, 8031211777081368, 1881178060690936124, 440582798370378649198, 103183388708031654899064, 24165085674494662633279194, 5659341931862650841963240524

Offset

1,2

Comments

Column 7 of A230571

Links

R. H. Hardin, Table of n, a(n) for n = 1..75

Example

Some solutions for n=3
..0..1..2..0..3..4..0....0..1..4..0..1..2..1....0..1..2..3..1..2..3
..0..3..1..2..0..1..0....2..3..0..0..3..0..1....0..1..4..0..3..4..0
..4..0..4..3..2..1..0....2..1..0..4..3..2..1....0..4..4..3..2..1..0

Crossrefs

Sequence in context: A217025 A268152 A230397 * A055308 A188890 A175881

Adjacent sequences: A230567 A230568 A230569 * A230571 A230572 A230573

Keyword

nonn

Author

R. H. Hardin, Oct 23 2013

Status

approved