A043414 - OEIS

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A043414

Numbers whose base-7 representation contains exactly two 5's.

0

40, 89, 138, 187, 236, 250, 257, 264, 271, 278, 280, 281, 282, 283, 284, 286, 292, 334, 383, 432, 481, 530, 579, 593, 600, 607, 614, 621, 623, 624, 625, 626, 627, 629, 635, 677, 726, 775, 824, 873, 922, 936, 943, 950, 957, 964

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..46.

MATHEMATICA

Select[Range[1000], DigitCount[#, 7, 5]==2&] (* Harvey P. Dale, Apr 03 2011 *)

CROSSREFS

Sequence in context: A203855 A188335 A185718 * A044178 A044559 A092613

Adjacent sequences: A043411 A043412 A043413 * A043415 A043416 A043417

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved