A sum over partitions (q=12), see first comment.

A221580

A sum over partitions (q=12), see first comment.

Terms

    a(0) =1a(1) =11a(2) =143a(3) =1716a(4) =20724a(5) =248677a(6) =2985840a(7) =35829937a(8) =429979836a(9) =5159757900a(10) =61917341772a(11) =743008099548

External references