Number of partitions of 0 having positive part-sum <= n.

Terms

a(0) =1a(1) =5a(2) =14a(3) =39a(4) =88a(5) =209a(6) =434a(7) =918a(8) =1818a(9) =3582a(10) =6718a(11) =12647a(12) =22848a(13) =41073a(14) =72049a(15) =125410a(16) =213619a(17) =361844a(18) =601944a(19) =995073a(20) =1622337a(21) =2626341a(22) =4201366a(23) =6681991a(24) =10515755a(25) =16449851a(26) =25509951a(27) =39333475a(28) =60172700a(29) =91577516