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A037421 Positive numbers having the same set of digits in base 3 and base 9. 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
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
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 April 12 09:51 EDT 2024. Contains 371627 sequences. (Running on oeis4.)