A sum over partitions (q=14), see first comment.

A221581

A sum over partitions (q=14), see first comment.

Terms

    a(0) =1a(1) =13a(2) =195a(3) =2730a(4) =38402a(5) =537615a(6) =7529340a(7) =105410565a(8) =1475786130a(9) =20661005638a(10) =289254613830

External references