Total sum of the sizes of all blocks with maximal element n in all set partitions of {1,2,...,2n-1}.
A270703
Total sum of the sizes of all blocks with maximal element n in all set partitions of {1,2,...,2n-1}.
Terms
- a(0) =1a(1) =4a(2) =41a(3) =670a(4) =15717a(5) =492112a(6) =19610565a(7) =961547874a(8) =56562256041
External references
- oeis: A270703