A037421 Positive numbers having the same set of digits in base 3 and base 9.

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

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

Clark Kimberling

Extensions

Corrected by Don Reble, Apr 28 2006

Name edited by John Cerkan, Jan 25 2017

Status

approved