A248118 Number of subsets of {1,...,n} containing n and having at least one set partition into 9 blocks with equal element sum.

1, 2, 11, 26, 111, 280, 980, 2599, 8292, 22644, 67300, 184254, 522852, 1417033, 3850857, 10182705, 26728948, 68619047, 173931193, 433669715, 1064551672, 2576125455, 6147085524

Offset

17,2

Links

Table of n, a(n) for n=17..39.

Crossrefs

Column k=9 of A248112.

Sequence in context: A371344 A104085 A080663 * A320648 A141464 A218471

Adjacent sequences: A248115 A248116 A248117 * A248119 A248120 A248121

Keyword

nonn,more

Author

Alois P. Heinz, Oct 02 2014

Extensions

a(28)-a(39) from Bert Dobbelaere, Mar 16 2026

Status

approved