Number of partitions of 2n+1 of type OO (see Comments).

Terms

a(0) =0a(1) =1a(2) =3a(3) =7a(4) =14a(5) =27a(6) =49a(7) =86a(8) =146a(9) =242a(10) =392a(11) =623a(12) =973a(13) =1498a(14) =2274a(15) =3411a(16) =5059a(17) =7427a(18) =10801a(19) =15572a(20) =22267a(21) =31602a(22) =44533a(23) =62338a(24) =86716a(25) =119918a(26) =164903a(27) =225566a(28) =306993a(29) =415814