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 A032923 Numbers whose set of base 16 digits is {1,3}. 1
 1, 3, 17, 19, 49, 51, 273, 275, 305, 307, 785, 787, 817, 819, 4369, 4371, 4401, 4403, 4881, 4883, 4913, 4915, 12561, 12563, 12593, 12595, 13073, 13075, 13105, 13107, 69905, 69907, 69937, 69939, 70417, 70419, 70449, 70451 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 MATHEMATICA Flatten[Table[FromDigits[#, 16]&/@Tuples[{1, 3}, n], {n, 5}]] (* Vincenzo Librandi, Jun 03 2012 *) PROG (MAGMA) [n: n in [1..75000] | Set(IntegerToSequence(n, 16)) subset {1, 3}]; // Vincenzo Librandi, Jun 03 2012 CROSSREFS Sequence in context: A226925 A259772 A082387 * A018750 A177208 A147845 Adjacent sequences:  A032920 A032921 A032922 * A032924 A032925 A032926 KEYWORD nonn,base AUTHOR STATUS approved

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Last modified January 23 10:50 EST 2020. Contains 331171 sequences. (Running on oeis4.)