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.
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.
Terms
- a(0) =5a(1) =522a(2) =17506a(3) =368606a(4) =6131236a(5) =89714397a(6) =1222378331a(7) =16017586392a(8) =205773378304
External references
- oeis: A270963