A039277 Numbers whose base-4 representation has the same nonzero number of 0's and 1's.

4, 18, 19, 24, 28, 33, 36, 49, 52, 65, 68, 74, 75, 78, 79, 80, 98, 99, 104, 108, 114, 115, 120, 124, 134, 135, 137, 141, 146, 147, 152, 156, 161, 164, 177, 180, 198, 199, 201, 205, 210, 211, 216, 220, 225, 228, 241, 244, 262, 263, 265, 269, 274, 275, 280, 284

Offset

1,1

Links

Table of n, a(n) for n=1..56.

Crossrefs

Cf. A007090.

Sequence in context: A231957 A275952 A081420 * A045019 A103061 A230605

Adjacent sequences: A039274 A039275 A039276 * A039278 A039279 A039280

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved