A270963 Number of set partitions of [n] having exactly nine pairs (m,m+1) such that m+1 is in some block b and m is in block b+1.

5, 522, 17506, 368606, 6131236, 89714397, 1222378331, 16017586392, 205773378304, 2622730297478, 33419633878019, 427875505471609, 5523038725443790, 72044774875932494, 951266975170654957, 12728521821662549888, 172734660881786725453, 2378751774455132263522

Offset: 14

Author

Alois P. Heinz, Mar 26 2016

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 14..220
• Wikipedia, Partition of a set

Crossrefs

Column k=9 of A270953.