Triangle read by rows, T(n, k) = Pochhammer(n, k) * Stirling2(2*n, k + n) for n >= 0 and 0 <= k <= n.

A293926

Triangle read by rows, T(n, k) = Pochhammer(n, k) * Stirling2(2*n, k + n) for n >= 0 and 0 <= k <= n.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =7a(4) =12a(5) =6a(6) =90a(7) =195a(8) =180a(9) =60a(10) =1701a(11) =4200a(12) =5320a(13) =3360a(14) =840a(15) =42525a(16) =114135a(17) =176400a(18) =157500a(19) =75600a(20) =15120a(21) =1323652a(22) =3764376a(23) =6679134a(24) =7484400a(25) =5155920a(26) =1995840a(27) =332640a(28) =49329280a(29) =146386240

External references