A224528 Number of idempotent 6X6 0..n matrices of rank 1

1458, 10830, 36042, 99774, 208146, 430278, 745650, 1289622, 2048514

Offset

1,1

Comments

Row 6 of A224524

Links

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

Example

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

Crossrefs

Sequence in context: A235554 A255345 A091715 * A206147 A035764 A107560

Adjacent sequences: A224525 A224526 A224527 * A224529 A224530 A224531

Keyword

nonn

Author

R. H. Hardin Apr 09 2013

Status

approved