A230569 Number of nX6 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, 2, 868, 93450, 8554108, 765537650, 67978636208, 6025699711838, 533868483494346, 47294149473702510, 4189543104517883096, 371126778105434772710, 32875849423134323212550, 2912268619993019980829876

Offset

1,2

Comments

Column 6 of A230571

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

R. H. Hardin, Empirical recurrence of order 68

Formula

Empirical recurrence of order 68 (see link above)

Example

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

Crossrefs

Sequence in context: A257660 A128667 A199947 * A239149 A050247 A159705

Adjacent sequences: A230566 A230567 A230568 * A230570 A230571 A230572

Keyword

nonn

Author

R. H. Hardin, Oct 23 2013

Status

approved