A039520 Numbers whose base-12 representation has the same nonzero number of 2's and 9's.

33, 110, 177, 254, 297, 309, 333, 345, 357, 369, 381, 393, 396, 397, 399, 400, 401, 402, 403, 404, 406, 407, 417, 429, 465, 542, 609, 686, 753, 830, 897, 974, 1041, 1118, 1185, 1262, 1298, 1310, 1320, 1321, 1323, 1324, 1325, 1326, 1327, 1328

Offset

1,1

Links

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

Mathematica

Select[Range[1500], DigitCount[#, 12, 2]==DigitCount[#, 12, 9]>0&] (* Harvey P. Dale, Sep 28 2018 *)

Crossrefs

Sequence in context: A183446 A296125 A297429 * A198291 A044284 A044665

Adjacent sequences: A039517 A039518 A039519 * A039521 A039522 A039523

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved