Triangular array read by rows: T(n,k) is the number of periodic n X n matrices over GF(2) having rank k, n>=0, 0<=k<=n.
A348622
Triangular array read by rows: T(n,k) is the number of periodic n X n matrices over GF(2) having rank k, n>=0, 0<=k<=n.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =6a(5) =6a(6) =1a(7) =28a(8) =168a(9) =168a(10) =1a(11) =120a(12) =3360a(13) =20160a(14) =20160a(15) =1a(16) =496a(17) =59520a(18) =1666560a(19) =9999360a(20) =9999360a(21) =1a(22) =2016a(23) =999936a(24) =119992320a(25) =3359784960a(26) =20158709760a(27) =20158709760a(28) =1a(29) =8128
External references
- oeis: A348622