a(n+1) = 2*a(n) + A014017(n+5), a(0) = 0.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =2a(6) =4a(7) =8a(8) =15a(9) =30a(10) =60a(11) =120a(12) =241a(13) =482a(14) =964a(15) =1928a(16) =3855a(17) =7710a(18) =15420a(19) =30840a(20) =61681a(21) =123362a(22) =246724a(23) =493448a(24) =986895a(25) =1973790a(26) =3947580a(27) =7895160a(28) =15790321a(29) =31580642