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A193612 Number of n X n symmetric 0..5 arrays with no element equal to the sum mod 6 of all its horizontal and vertical neighbors 0
5, 123, 15625, 9766908, 30517597530, 476837158203125, 37252902984619140625 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for 4X4

..3..0..3..5....3..0..4..1....3..3..3..3....3..0..1..3....3..0..3..3

..0..3..1..5....0..0..2..0....3..0..2..4....0..3..5..3....0..3..4..4

..3..1..3..2....4..2..2..4....3..2..3..3....1..5..1..0....3..4..2..2

..5..5..2..3....1..0..4..0....3..4..3..1....3..3..0..5....3..4..2..1

CROSSREFS

Sequence in context: A208394 A320978 A196425 * A195949 A067081 A195801

Adjacent sequences:  A193609 A193610 A193611 * A193613 A193614 A193615

KEYWORD

nonn

AUTHOR

R. H. Hardin Jul 31 2011

STATUS

approved

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Last modified November 29 18:41 EST 2021. Contains 349416 sequences. (Running on oeis4.)