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 A045016 Numbers n with property that in base 4 representation the numbers of 0's and 1's are 0 and 3, respectively. 1
 21, 86, 87, 89, 93, 101, 117, 149, 213, 346, 347, 350, 351, 358, 359, 361, 365, 374, 375, 377, 381, 406, 407, 409, 413, 421, 437, 470, 471, 473, 477, 485, 501, 598, 599, 601, 605, 613, 629, 661, 725, 854, 855, 857, 861, 869, 885 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..3500 MATHEMATICA Select[Range[10000], DigitCount[#, 4, 0] == 0 && DigitCount[#, 4, 1] == 3 &] (* Vincenzo Librandi, Sep 21 2016 *) CROSSREFS Sequence in context: A217549 A063651 A220613 * A171129 A301540 A240518 Adjacent sequences:  A045013 A045014 A045015 * A045017 A045018 A045019 KEYWORD nonn,base AUTHOR STATUS approved

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Last modified April 10 22:05 EDT 2021. Contains 342856 sequences. (Running on oeis4.)