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A044988
Numbers whose base-3 representation contains exactly four 0's and three 1's.
1
733, 739, 741, 757, 759, 765, 811, 813, 819, 837, 973, 975, 981, 999, 1053, 2201, 2203, 2209, 2219, 2221, 2225, 2229, 2233, 2235, 2245, 2251, 2253, 2273, 2275, 2279, 2283, 2287, 2289, 2297, 2301, 2313, 2323, 2325, 2331
OFFSET
1,1
MATHEMATICA
A044988list[upto_]:=Select[Range[upto], DigitCount[#, 3, 0]==4&&DigitCount[#, 3, 1]==3&]; A044988list[2500] (* Paolo Xausa, Aug 02 2023 *)
CROSSREFS
Cf. A007089.
Sequence in context: A289571 A098291 A255798 * A288882 A178093 A143726
KEYWORD
nonn,base
STATUS
approved