A031459 Numbers whose base-3 representation has 3 fewer 0's than 2's.

26, 53, 71, 77, 79, 134, 152, 158, 160, 188, 206, 212, 214, 224, 230, 232, 236, 238, 240, 323, 377, 395, 401, 403, 431, 449, 455, 457, 467, 473, 475, 479, 481, 483, 539, 557, 563, 565, 593, 611, 617, 619, 629, 635, 637, 641, 643

Offset

1,1

Links

Table of n, a(n) for n=1..47.

Mathematica

Select[Range@700, (s=#; Differences[Count[IntegerDigits[s, 3], #]&/@{0, 2}]=={3})&] (* Giorgos Kalogeropoulos, Jul 04 2021 *)

Crossrefs

Cf. A007089.

Sequence in context: A335475 A043331 A023701 * A044992 A042338 A042336

Adjacent sequences: A031456 A031457 A031458 * A031460 A031461 A031462

Keyword

nonn,base

Author

Clark Kimberling

Status

approved