Number of idempotent n X n 0..5 matrices of rank n-1.

A224330

Number of idempotent n X n 0..5 matrices of rank n-1.

Terms

    a(0) =1a(1) =22a(2) =213a(3) =1724a(4) =12955a(5) =93306a(6) =653177a(7) =4478968a(8) =30233079a(9) =201553910a(10) =1330255861a(11) =8707129332a(12) =56596340723a(13) =365699432434

External references