Numbers k such that A030757(k) = 4.

Terms

a(0) =5a(1) =24a(2) =30a(3) =31a(4) =44a(5) =53a(6) =68a(7) =89a(8) =90a(9) =104a(10) =131a(11) =149a(12) =154a(13) =176a(14) =179a(15) =207a(16) =240a(17) =244a(18) =246a(19) =277a(20) =288a(21) =313a(22) =315a(23) =319a(24) =322a(25) =373a(26) =401a(27) =408a(28) =409a(29) =462