Number of ways to choose a strict composition of each part of an integer partition of n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =9a(5) =17a(6) =41a(7) =71a(8) =138a(9) =270a(10) =518a(11) =938a(12) =1863a(13) =3323a(14) =6163a(15) =11436a(16) =20883a(17) =37413a(18) =69257a(19) =122784a(20) =221873a(21) =397258a(22) =708142a(23) =1249955a(24) =2236499a(25) =3917628a(26) =6909676a(27) =12130972a(28) =21251742a(29) =36973609