Number of integer partitions of n without choosable initial intervals.

Terms

a(0) =0a(1) =0a(2) =1a(3) =1a(4) =2a(5) =4a(6) =6a(7) =8a(8) =13a(9) =19a(10) =28a(11) =37a(12) =52a(13) =70a(14) =97a(15) =130a(16) =172a(17) =224a(18) =293a(19) =378a(20) =492a(21) =630a(22) =806a(23) =1018a(24) =1286a(25) =1609a(26) =2019a(27) =2514a(28) =3131a(29) =3874