Number of idempotent n X n 0..7 matrices of rank n-1.

A224332

Number of idempotent n X n 0..7 matrices of rank n-1.

Terms

    a(0) =1a(1) =30a(2) =381a(3) =4092a(4) =40955a(5) =393210a(6) =3670009a(7) =33554424a(8) =301989879a(9) =2684354550a(10) =23622320117a(11) =206158430196

External references