A270765 Total sum of the sizes of all blocks with minimal element 2 in all set partitions of {1,2,...,n}.

1, 4, 16, 67, 299, 1429, 7307, 39848, 230884, 1416047, 9160977, 62316137, 444424965, 3314372728, 25786012724, 208842481687, 1757367578867, 15337268316933, 138603393210479, 1295082562497364, 12494759080718152, 124314054484739035, 1274003246005735449

Offset

2,2

Links

Alois P. Heinz, Table of n, a(n) for n = 2..575

Wikipedia, Partition of a set

Crossrefs

Column k=2 of A270702.

A diagonal of A270701.

Sequence in context: A024551 A261048 A091153 * A292759 A351049 A259815

Adjacent sequences: A270762 A270763 A270764 * A270766 A270767 A270768

Keyword

nonn

Author

Alois P. Heinz, Mar 22 2016

Status

approved