Exponential convolution of number of partitions (A000041) and number of partitions into distinct parts (A000009).

A307754

Exponential convolution of number of partitions (A000041) and number of partitions into distinct parts (A000009).

Terms

    a(0) =1a(1) =2a(2) =5a(3) =14a(4) =39a(5) =115a(6) =330a(7) =958a(8) =2708a(9) =7700a(10) =21474a(11) =59732a(12) =164126a(13) =447995a(14) =1211720a(15) =3258896a(16) =8699731a(17) =23100190a(18) =60985784a(19) =160172634a(20) =418505039a(21) =1088396720a(22) =2817751182a(23) =7262961898a(24) =18647741599a(25) =47690238685a(26) =121529569106a(27) =308617383361a(28) =781131731981

External references