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A044972 Numbers whose base-3 representation contains exactly one 0 and two 1's. 2
10, 12, 32, 34, 38, 42, 46, 48, 58, 64, 66, 98, 104, 106, 116, 128, 132, 140, 142, 146, 150, 154, 156, 176, 178, 184, 194, 196, 200, 204, 208, 210, 220, 226, 228, 296, 314, 320, 322, 350, 386, 398, 402, 422, 428, 430, 440, 452 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[500], DigitCount[#, 3, 0]==1&&DigitCount[#, 3, 1]==2&] (* Harvey P. Dale, Aug 19 2019 *)
PROG
(PARI) is(n)=my(d=digits(n, 3), fr=vector(3)); for(i=1, #d, fr[d[i]+1]++); fr[1]==1&&fr[2]==2 \\ David A. Corneth, Aug 19 2019
CROSSREFS
Sequence in context: A015728 A080470 A087217 * A132313 A324745 A367148
KEYWORD
nonn,easy,base
AUTHOR
STATUS
approved

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Last modified April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)