Numbers k such that k is a substring of 2^k.

Terms

a(0) =6a(1) =10a(2) =35a(3) =36a(4) =37a(5) =44a(6) =49a(7) =51a(8) =60a(9) =67a(10) =72a(11) =73a(12) =82a(13) =85a(14) =89a(15) =93a(16) =179a(17) =188a(18) =190a(19) =191a(20) =226a(21) =234a(22) =252a(23) =297a(24) =312a(25) =321a(26) =356a(27) =373a(28) =391a(29) =425