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 A045138 Numbers whose base-4 representation contains exactly one 2 and no 3's. 0
 2, 6, 8, 9, 18, 22, 24, 25, 32, 33, 36, 37, 66, 70, 72, 73, 82, 86, 88, 89, 96, 97, 100, 101, 128, 129, 132, 133, 144, 145, 148, 149, 258, 262, 264, 265, 274, 278, 280, 281, 288, 289, 292, 293, 322, 326, 328, 329, 338, 342, 344, 345 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..52. MATHEMATICA Select[Range[400], DigitCount[#, 4, 2]==1&&DigitCount[#, 4, 3]==0&] (* Harvey P. Dale, Mar 14 2023 *) CROSSREFS Cf. A007090. Sequence in context: A242204 A172209 A107737 * A067704 A284889 A192125 Adjacent sequences: A045135 A045136 A045137 * A045139 A045140 A045141 KEYWORD nonn,base AUTHOR Clark Kimberling STATUS approved

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Last modified May 21 09:41 EDT 2024. Contains 372733 sequences. (Running on oeis4.)