Number of integer partitions of n not forming an arithmetic progression with offset 0.

Terms

a(0) =0a(1) =0a(2) =1a(3) =1a(4) =4a(5) =6a(6) =8a(7) =14a(8) =21a(9) =28a(10) =40a(11) =55a(12) =74a(13) =100a(14) =134a(15) =173a(16) =230a(17) =296a(18) =382a(19) =489a(20) =625a(21) =789a(22) =1001a(23) =1254a(24) =1572a(25) =1957a(26) =2435a(27) =3008a(28) =3716a(29) =4564