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A037312

Numbers whose base-3 and base-7 expansions have the same digit sum.

1, 2, 15, 16, 17, 21, 22, 23, 35, 57, 58, 59, 63, 64, 65, 78, 79, 80, 99, 100, 101, 112, 113, 119, 133, 134, 150, 151, 152, 156, 157, 158, 204, 205, 206, 210, 211, 212, 224, 294, 295, 296, 348, 349, 351, 352, 353, 366, 367, 368, 372

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OFFSET

1,2

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Range[400], Total[IntegerDigits[#, 3]]==Total[IntegerDigits[ #, 7]]&] (* Harvey P. Dale, May 24 2012 *)

CROSSREFS

Sequence in context: A102101 A322149 A163480 * A267711 A390225 A108472

Adjacent sequences: A037309 A037310 A037311 * A037313 A037314 A037315

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

URL: https://oeis.org/A037312

⇱ A037312 - OEIS