Triangle read by rows, a refinement of the central Stirling numbers of the first kind A187646, T(n, k) for n >= 0 and 0 <= k <= n.

A293609

Triangle read by rows, a refinement of the central Stirling numbers of the first kind A187646, T(n, k) for n >= 0 and 0 <= k <= n.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =7a(4) =4a(5) =0a(6) =90a(7) =120a(8) =15a(9) =0a(10) =1701a(11) =3696a(12) =1316a(13) =56a(14) =0a(15) =42525a(16) =129780a(17) =84630a(18) =12180a(19) =210a(20) =0a(21) =1323652a(22) =5233404a(23) =5184894a(24) =1492744a(25) =104049a(26) =792a(27) =0a(28) =49329280a(29) =240240000

External references