Triangle read by rows, the ordered Stirling cycle numbers, T(n, k) = k!* s(n, k); n >= 0 k >= 0.

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =2a(6) =0a(7) =2a(8) =6a(9) =6a(10) =0a(11) =6a(12) =22a(13) =36a(14) =24a(15) =0a(16) =24a(17) =100a(18) =210a(19) =240a(20) =120a(21) =0a(22) =120a(23) =548a(24) =1350a(25) =2040a(26) =1800a(27) =720a(28) =0a(29) =720