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A224119 Number of idempotent 5X5 0..n matrices of rank 3 0
2050, 20810, 103050, 368130, 1042030, 2563150, 5576290, 11164490, 20782910, 36563090, 61222530, 98646650, 153264230, 231266730, 339896070 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A224118

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

Some solutions for n=3

..1..0..0..0..0....1..3..0..2..0....1..0..0..1..0....1..0..0..0..0

..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..1..0..0..0

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

..0..3..0..1..1....0..0..0..0..0....0..0..0..0..0....2..1..3..0..0

..0..0..0..0..0....0..0..0..2..1....0..3..0..3..1....0..1..3..0..0

CROSSREFS

Sequence in context: A123095 A174752 A045059 * A183842 A253711 A168176

Adjacent sequences:  A224116 A224117 A224118 * A224120 A224121 A224122

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 09 2013

STATUS

approved

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Last modified May 25 19:19 EDT 2022. Contains 354071 sequences. (Running on oeis4.)