Triangle interpolating the binomial transform of the swinging factorial (A163865) with the swinging factorial (A056040).

A163840

Triangle interpolating the binomial transform of the swinging factorial (A163865) with the swinging factorial (A056040).

Terms

    a(0) =1a(1) =2a(2) =1a(3) =5a(4) =3a(5) =2a(6) =16a(7) =11a(8) =8a(9) =6a(10) =47a(11) =31a(12) =20a(13) =12a(14) =6a(15) =146a(16) =99a(17) =68a(18) =48a(19) =36a(20) =30a(21) =447a(22) =301a(23) =202a(24) =134a(25) =86a(26) =50a(27) =20a(28) =1380a(29) =933

External references