L.g.f.: Sum_{n>=1} x^((2*n-1)^2) / ( (2*n-1) * (1 - x^(2*n))^(2*n-1) ).

Terms

a(0) =1a(1) =3a(2) =5a(3) =7a(4) =12a(5) =11a(6) =26a(7) =15a(8) =51a(9) =19a(10) =91a(11) =23a(12) =155a(13) =27a(14) =232a(15) =62a(16) =341a(17) =35a(18) =592a(19) =39a(20) =656a(21) =344a(22) =870a(23) =47a(24) =1820a(25) =51a(26) =1431a(27) =1441a(28) =1843a(29) =59