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%I #3 Apr 09 2013 10:46:51
%S 405,2155,5845,13525,24575,44545,69195,107925,156505,223355,301605,
%T 413755,535845,694695,882245
%N Number of idempotent 5X5 0..n matrices of rank 1
%C Row 5 of A224524
%e Some solutions for n=3
%e ..0..0..0..0..0....0..3..0..2..1....0..0..0..0..0....0..0..0..0..0
%e ..0..0..0..0..0....0..0..0..0..0....3..1..1..1..3....1..0..0..0..1
%e ..2..3..0..1..3....0..3..0..2..1....0..0..0..0..0....2..0..0..0..2
%e ..2..3..0..1..3....0..0..0..0..0....0..0..0..0..0....3..0..0..0..3
%e ..0..0..0..0..0....0..3..0..2..1....0..0..0..0..0....1..0..0..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Apr 09 2013