Triangle read by rows: T(n, k) = (Sum_{i=0..n-k} (-1)^i * binomial(n-k, i) * A007559(n-i)) * n! / ((n-k)! * A007559(k)) for 0 <= k <= n.

A372921

Triangle read by rows: T(n, k) = (Sum_{i=0..n-k} (-1)^i * binomial(n-k, i) * A007559(n-i)) * n! / ((n-k)! * A007559(k)) for 0 <= k <= n.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =3a(4) =6a(5) =2a(6) =18a(7) =63a(8) =36a(9) =6a(10) =189a(11) =828a(12) =684a(13) =216a(14) =24a(15) =2484a(16) =13365a(17) =14400a(18) =6660a(19) =1440a(20) =120a(21) =40095a(22) =255474a(23) =339390a(24) =206280a(25) =65880a(26) =10800a(27) =720a(28) =766422a(29) =5645619

External references