From relations between Siegel theta series.

Terms

a(0) =389a(1) =433a(2) =563a(3) =571a(4) =643a(5) =709a(6) =997a(7) =1061a(8) =1171a(9) =1483a(10) =1531a(11) =1567a(12) =1613a(13) =1621a(14) =1627a(15) =1693a(16) =1873a(17) =1907a(18) =1913a(19) =1933a(20) =2027a(21) =2029a(22) =2081a(23) =2089a(24) =2251a(25) =2293a(26) =2333a(27) =2381a(28) =2593a(29) =2609