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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, 0, 32, 91084, 765537650, 34266592666538, 11220386097390449420, 24971760141637764971446132 (list; graph; refs; listen; history; text; internal format)
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

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Last modified August 24 22:35 EDT 2019. Contains 326313 sequences. (Running on oeis4.)