a(n) = Sum_{k=0..n} C(n,k)*S2(n,k). Binomial convolution of the Stirling numbers of the 2nd kind. Also sum of the rows of A122454.
A122455
a(n) = Sum_{k=0..n} C(n,k)*S2(n,k). Binomial convolution of the Stirling numbers of the 2nd kind. Also sum of the rows of A122454.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =13a(4) =71a(5) =456a(6) =3337a(7) =27203a(8) =243203a(9) =2357356a(10) =24554426a(11) =272908736a(12) =3218032897a(13) =40065665043a(14) =524575892037
External references
- oeis: A122455