Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #8 Feb 06 2023 11:56:45
%S 3070,30410,136990,467290,1240310,2986210,6260470,12345410,22576030,
%T 39299170,64929590,104218930,160450990,240932330,352487350
%N Number of idempotent 5X5 0..n matrices of rank 2.
%e Some solutions for n=3
%e ..0..0..0..0..0....0..0..0..0..0....1..2..1..0..0....0..0..1..3..0
%e ..2..1..0..2..1....3..1..2..3..0....0..0..0..0..0....0..0..0..3..3
%e ..1..0..1..1..0....0..0..0..0..0....0..0..0..0..0....0..0..1..3..0
%e ..0..0..0..0..0....0..0..0..0..0....0..0..0..1..0....0..0..0..0..0
%e ..0..0..0..0..0....0..0..3..1..1....0..0..0..3..0....0..0..0..1..1
%Y Row 5 of A224114.
%K nonn,more
%O 1,1
%A _R. H. Hardin_, Apr 09 2013