Number of ordered partitions of [n] such that at least two adjacent parts have the same size.

A262046

Number of ordered partitions of [n] such that at least two adjacent parts have the same size.

Terms

    a(0) =0a(1) =0a(2) =2a(3) =6a(4) =54a(5) =460a(6) =3890a(7) =42364a(8) =512806a(9) =6698724a(10) =98496252a(11) =1585046584a(12) =27568171818a(13) =520043947020

External references