A270766 Total sum of the sizes of all blocks with minimal element 3 in all set partitions of {1,2,...,n}.
2, 9, 41, 195, 979, 5204, 29278, 174029, 1090335, 7182335, 49620133, 358677988, 2706692878, 21279580773, 173959285361, 1476140369523, 12980688801711, 118115459494648, 1110587753256570, 10776530860299409, 107787449481730311, 1110043901404359391
Offset: 3
Keywords
Links
- Alois P. Heinz, Table of n, a(n) for n = 3..575
- Wikipedia, Partition of a set