Numbers k such that A003231(A001950(k)) = A001950(A003231(k)).

Terms

a(0) =1a(1) =2a(2) =4a(3) =5a(4) =6a(5) =7a(6) =9a(7) =10a(8) =12a(9) =13a(10) =14a(11) =15a(12) =17a(13) =18a(14) =20a(15) =22a(16) =23a(17) =25a(18) =26a(19) =27a(20) =28a(21) =30a(22) =31a(23) =33a(24) =34a(25) =35a(26) =36a(27) =38a(28) =39a(29) =40