A043510 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A043510

Numbers having two 5's in base 10.

2

55, 155, 255, 355, 455, 505, 515, 525, 535, 545, 550, 551, 552, 553, 554, 556, 557, 558, 559, 565, 575, 585, 595, 655, 755, 855, 955, 1055, 1155, 1255, 1355, 1455, 1505, 1515, 1525, 1535, 1545, 1550, 1551, 1552, 1553, 1554, 1556

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

OFFSET

1,1

LINKS

Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range[1600], DigitCount[#, 10, 5]==2&] (* Harvey P. Dale, Sep 01 2021 *)

CROSSREFS

Subsequence of A011535.

Sequence in context: A067978 A072429 A046438 * A044387 A044768 A352268

Adjacent sequences: A043507 A043508 A043509 * A043511 A043512 A043513

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved