Number of partitions of {1,...,n} containing 3 strings of 3 consecutive integers such that only v-strings of consecutive integers can appear in a block, where v = 1,2,3.

A105493

Number of partitions of {1,...,n} containing 3 strings of 3 consecutive integers such that only v-strings of consecutive integers can appear in a block, where v = 1,2,3.

Terms

    a(0) =2a(1) =20a(2) =170a(3) =1340a(4) =10375a(5) =80652a(6) =636990a(7) =5143740a(8) =42613980a(9) =362863600a(10) =3178544754a(11) =28650249848

External references