Number of integer partitions of n with omicron 2.

Terms

a(0) =0a(1) =0a(2) =1a(3) =1a(4) =3a(5) =5a(6) =7a(7) =12a(8) =17a(9) =24a(10) =33a(11) =44a(12) =57a(13) =76a(14) =100a(15) =129a(16) =168a(17) =214a(18) =282a(19) =355a(20) =462a(21) =586a(22) =755a(23) =937a(24) =1202a(25) =1493a(26) =1900a(27) =2349a(28) =2944a(29) =3621