Sum of the sizes of the (n+1)-th blocks in all set partitions of {1,2,...,2n+1}.
A270529
Sum of the sizes of the (n+1)-th blocks in all set partitions of {1,2,...,2n+1}.
Terms
- a(0) =1a(1) =5a(2) =47a(3) =675a(4) =13276a(5) =334751a(6) =10354804a(7) =380797185a(8) =16262852622a(9) =792102157717
External references
- oeis: A270529