A230914 Number of nX7 0..7 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 8, and upper left element zero

0, 32, 17694, 4725576, 1406791226, 433315174684, 132452949993492, 40377009411879390, 12312133218182190396, 3754741447813230806820, 1145012085042280823184860, 349169214981668401382285878

Offset

1,2

Comments

Column 7 of A230915

Links

R. H. Hardin, Table of n, a(n) for n = 1..37

Example

Some solutions for n=3
..0..1..2..1..0..7..6....0..1..2..3..4..5..4....0..1..0..5..6..7..0
..0..3..4..7..4..5..4....6..7..2..3..6..5..2....2..3..4..5..6..1..0
..2..5..6..3..2..3..2....0..1..0..7..4..3..2....2..3..4..3..2..7..6

Crossrefs

Sequence in context: A121913 A016877 A227659 * A232596 A123393 A245291

Adjacent sequences: A230911 A230912 A230913 * A230915 A230916 A230917

Keyword

nonn

Author

R. H. Hardin, Nov 01 2013

Status

approved