D-toothpick sequence of the second kind (see Comments lines for definition).

Terms

a(0) =0a(1) =1a(2) =5a(3) =13a(4) =29a(5) =51a(6) =75a(7) =97a(8) =137a(9) =177a(10) =209a(11) =241a(12) =297a(13) =371a(14) =467a(15) =517a(16) =605a(17) =677a(18) =709a(19) =757a(20) =829a(21) =933a(22) =1061a(23) =1173a(24) =1317a(25) =1461a(26) =1613a(27) =1709a(28) =1861a(29) =2039