Total sum of the sizes of all blocks with minimal element 5 in all set partitions of {1,2,...,n}.
A270768
Total sum of the sizes of all blocks with minimal element 5 in all set partitions of {1,2,...,n}.
Terms
- a(0) =15a(1) =82a(2) =456a(3) =2623a(4) =15717a(5) =98367a(6) =643401a(7) =4395802a(8) =31336468a(9) =232773295a(10) =1799100571a(11) =14446912419a(12) =120354176611
External references
- oeis: A270768