a(0)=1, a(n) = a(n-1) + a(2*n AND n), where AND is the bitwise AND operator.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =7a(5) =8a(6) =15a(7) =30a(8) =31a(9) =32a(10) =33a(11) =36a(12) =67a(13) =98a(14) =165a(15) =330a(16) =331a(17) =332a(18) =333a(19) =336a(20) =337a(21) =338a(22) =345a(23) =360a(24) =691a(25) =1022a(26) =1353a(27) =1686a(28) =2377a(29) =3068