login
A044992
Numbers whose base-3 representation contains no 0's and exactly three 2's.
1
26, 53, 71, 77, 79, 134, 152, 158, 160, 206, 212, 214, 230, 232, 238, 377, 395, 401, 403, 449, 455, 457, 473, 475, 481, 611, 617, 619, 635, 637, 643, 689, 691, 697, 715, 1106, 1124, 1130, 1132, 1178, 1184, 1186, 1202, 1204, 1210
OFFSET
1,1
MATHEMATICA
A044992list[upto_]:=Select[Range[upto], DigitCount[#, 3, 0]==0&&DigitCount[#, 3, 2]==3&]; A044992list[2000] (* Paolo Xausa, Aug 02 2023 *)
CROSSREFS
Cf. A007089.
Sequence in context: A043331 A023701 A031459 * A042338 A042336 A042334
KEYWORD
nonn,base
STATUS
approved