Numbers k such that the base-3 expansions of 2^k and 2^(k+1) have the same number of 1's and the same number of digits.

A056735

Numbers k such that the base-3 expansions of 2^k and 2^(k+1) have the same number of 1's and the same number of digits.

Terms

    a(0) =5a(1) =27a(2) =32a(3) =40a(4) =54a(5) =92a(6) =135a(7) =138a(8) =151a(9) =159a(10) =167a(11) =176a(12) =189a(13) =281a(14) =284a(15) =319a(16) =401a(17) =503a(18) =718a(19) =723a(20) =734a(21) =820a(22) =929a(23) =1035a(24) =1086a(25) =1127a(26) =1311a(27) =1341a(28) =1371a(29) =1693

External references