Triangle read by rows, a(n,k), n>=k>=1, which represent the s=3, h=1 case of a two-parameter generalization of Stirling numbers arising in conjunction with normal ordering.
A203412
Triangle read by rows, a(n,k), n>=k>=1, which represent the s=3, h=1 case of a two-parameter generalization of Stirling numbers arising in conjunction with normal ordering.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =3a(5) =1a(6) =28a(7) =19a(8) =6a(9) =1a(10) =280a(11) =180a(12) =55a(13) =10a(14) =1a(15) =3640a(16) =2260a(17) =675a(18) =125a(19) =15a(20) =1a(21) =58240a(22) =35280a(23) =10360a(24) =1925a(25) =245a(26) =21a(27) =1a(28) =1106560a(29) =658000
External references
- oeis: A203412