a(n) = A341886(n)/2; numbers k such that A307437(k) is even.

Terms

a(0) =256a(1) =512a(2) =1024a(3) =2816a(4) =4096a(5) =5632a(6) =8192a(7) =11264a(8) =27136a(9) =28928a(10) =48896a(11) =54272a(12) =61184a(13) =65536a(14) =75008a(15) =82688a(16) =84992a(17) =90112a(18) =94464a(19) =97792a(20) =105216a(21) =122368a(22) =124160a(23) =128000a(24) =138240a(25) =139520a(26) =150016a(27) =158720a(28) =166656a(29) =167168