A230728 Number of nX6 0..5 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 6, and upper left element zero

0, 30, 2790, 287616, 31533840, 3392436180, 364767453384, 39242855355538, 4221146610109726, 454047213220173184, 48839869447328365210, 5253480931259363958564, 565092904199338813063288

Offset

1,2

Comments

Column 6 of A230730

Links

R. H. Hardin, Table of n, a(n) for n = 1..202

R. H. Hardin, Empirical recurrence of order 50

Formula

Empirical recurrence of order 50 (see link above)

Example

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

Crossrefs

Sequence in context: A138916 A266041 A091544 * A352652 A108091 A036363

Adjacent sequences: A230725 A230726 A230727 * A230729 A230730 A230731

Keyword

nonn

Author

R. H. Hardin, Oct 28 2013

Status

approved