A230566 Number of n X n 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, 0, 0, 32, 91084, 765537650, 34266592666538, 11220386097390449420, 24971760141637764971446132

Offset

1,4

Comments

Diagonal of A230571

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Sequence in context: A017009 A176030 A034245 * A017093 A159412 A201987

Adjacent sequences: A230563 A230564 A230565 * A230567 A230568 A230569

Keyword

nonn

Author

R. H. Hardin, Oct 23 2013

Status

approved