A165406 Sequence A165404 shown in binary, or equivalently, sequence A163901 in quaternary base.

0, 1, 100, 110, 111, 10000, 10010, 10011, 11000, 11001, 11100, 11110, 11111, 1000000, 1000010, 1000011, 1001000, 1001001, 1001100, 1001110, 1001111, 1100000, 1100001, 1100100, 1100110, 1100111, 1110000, 1110010, 1110011

Offset: 0

Author

Antti Karttunen, Sep 19 2009

Keywords

• nonn
• base

Links

• A. Karttunen, Table of n, a(n) for n = 0..609

Crossrefs

a(n) = A007088(A165404(n)) = A007090(A163901(n)). For n>0, A147600(n-1) seems to give the number of terms with n binary digits.