Partition number array, called M32(-4), related to A011801(n,m)= |S2(-4;n,m)| ( generalized Stirling triangle).

A144267

Partition number array, called M32(-4), related to A011801(n,m)= |S2(-4;n,m)| ( generalized Stirling triangle).

Terms

    a(0) =1a(1) =4a(2) =1a(3) =36a(4) =12a(5) =1a(6) =504a(7) =144a(8) =48a(9) =24a(10) =1a(11) =9576a(12) =2520a(13) =1440a(14) =360a(15) =240a(16) =40a(17) =1a(18) =229824a(19) =57456a(20) =30240a(21) =12960a(22) =7560a(23) =8640a(24) =960a(25) =720a(26) =720a(27) =60a(28) =1a(29) =6664896

External references