A213987 - OEIS

A213987

Number of n X n 0..5 matrices whose square is also a 0..5 matrix.

3, 92, 14030, 9131098, 22406574462

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 5 of A213990

LINKS

EXAMPLE

Some solutions for n=3

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

..0..0..0....0..0..0....0..0..5....1..0..0....0..0..0....0..0..0....0..0..1

..0..0..0....0..0..2....0..0..0....0..0..1....0..0..0....0..4..0....0..1..0

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 30 2012

STATUS

approved