Numbers n from which zero or more applications of A003415 will lead to 5.

Terms

a(0) =5a(1) =6a(2) =9a(3) =14a(4) =33a(5) =49a(6) =62a(7) =94a(8) =177a(9) =445a(10) =817a(11) =886a(12) =913a(13) =961a(14) =1146a(15) =1155a(16) =1633a(17) =1719a(18) =1822a(19) =2006a(20) =2173a(21) =2209a(22) =2306a(23) =2625a(24) =2649a(25) =2825a(26) =3255a(27) =3430a(28) =3450a(29) =3871