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A045040
Numbers whose base-4 representation contains no 0's and exactly three 2's.
1
42, 106, 154, 166, 169, 171, 174, 186, 234, 362, 410, 422, 425, 427, 430, 442, 490, 602, 614, 617, 619, 622, 634, 662, 665, 667, 670, 677, 679, 685, 687, 694, 697, 699, 702, 730, 742, 745, 747, 750, 762, 874, 922, 934, 937, 939
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[20000], DigitCount[#, 4, 0] == 0 && DigitCount[#, 4, 2] == 3 &] (* Vincenzo Librandi, Sep 23 2016 *)
CROSSREFS
Cf. A007090.
Sequence in context: A075296 A023716 A045148 * A044229 A044610 A335064
KEYWORD
nonn,base
STATUS
approved