A213987 Number of n X n 0..5 matrices whose square is also a 0..5 matrix

3, 92, 14030, 9131098, 22406574462

Offset

1,1

Comments

Column 5 of A213990

Links

Table of n, a(n) for n=1..5.

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

Sequence in context: A213978 A318129 A119121 * A297479 A116161 A285004

Adjacent sequences: A213984 A213985 A213986 * A213988 A213989 A213990

Keyword

nonn

Author

R. H. Hardin Jun 30 2012

Status

approved