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A224527 Number of idempotent 5X5 0..n matrices of rank 1 0

%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

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Last modified April 22 12:55 EDT 2024. Contains 371900 sequences. (Running on oeis4.)