A039005 Numbers whose base-4 representation has the same number of 1's and 3's.

0, 2, 7, 8, 10, 13, 19, 27, 28, 30, 32, 34, 39, 40, 42, 45, 49, 52, 54, 57, 67, 75, 76, 78, 95, 99, 107, 108, 110, 112, 114, 119, 120, 122, 125, 128, 130, 135, 136, 138, 141, 147, 155, 156, 158, 160, 162, 167, 168, 170, 173, 177, 180, 182, 185, 193, 196, 198

Offset

1,2

Links

Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A007090, A160381, A160383.

Cf. A004171 (subsequence).

Sequence in context: A199004 A168064 A243167 * A022431 A356671 A047525

Adjacent sequences: A039002 A039003 A039004 * A039006 A039007 A039008

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved