Number of partitions of 4n whose xor-sum is 2n.

Terms

a(0) =1a(1) =2a(2) =4a(3) =16a(4) =16a(5) =65a(6) =153a(7) =411a(8) =165a(9) =437a(10) =931a(11) =2317a(12) =4802a(13) =10595a(14) =21565a(15) =43211a(16) =5014a(17) =10911a(18) =22466a(19) =44695a(20) =83058a(21) =156147a(22) =286432a(23) =516479a(24) =595305a(25) =1133892a(26) =2111273a(27) =3803940a(28) =6731760a(29) =11653790