Triangular array read by rows. T(n,k) is the number of nilpotent n X n matrices over GF(2) with index k, 1 <= k <= n, n >= 1.
A346214
Triangular array read by rows. T(n,k) is the number of nilpotent n X n matrices over GF(2) with index k, 1 <= k <= n, n >= 1.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =21a(5) =42a(6) =1a(7) =315a(8) =1260a(9) =2520a(10) =1a(11) =6975a(12) =104160a(13) =312480a(14) =624960a(15) =1a(16) =373023a(17) =23436000a(18) =104993280a(19) =314979840a(20) =629959680a(21) =1a(22) =32252031a(23) =9175162752a(24) =121912197120a(25) =426692689920a(28) =1a(29) =6619979775
External references
- oeis: A346214