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 A037421 Positive numbers n such that the set of base-3 digits of n equals the set of base-9 digits of n. 1
 1, 2, 9, 18, 81, 82, 83, 90, 99, 162, 163, 164, 171, 180, 729, 730, 731, 738, 739, 740, 747, 748, 749, 810, 811, 812, 819, 828, 891, 892, 893, 900, 909, 1458, 1459, 1460, 1467, 1468, 1469, 1476, 1477, 1478, 1539, 1540, 1541, 1548, 1557, 1620, 1621 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS John Cerkan, Table of n, a(n) for n = 1..10000 PROG (PARI) is(n)=Set(digits(n, 3))==Set(digits(n, 9)) \\ Charles R Greathouse IV, Feb 11 2017 CROSSREFS Sequence in context: A083708 A280588 A191520 * A083423 A068978 A006226 Adjacent sequences:  A037418 A037419 A037420 * A037422 A037423 A037424 KEYWORD nonn,base AUTHOR EXTENSIONS Corrected by Don Reble, Apr 28 2006 Name edited by John Cerkan, Jan 25 2017 STATUS approved

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Last modified June 16 03:44 EDT 2019. Contains 324145 sequences. (Running on oeis4.)