A043482 Numbers having two 7's in base 9.

70, 151, 232, 313, 394, 475, 556, 574, 583, 592, 601, 610, 619, 628, 630, 631, 632, 633, 634, 635, 636, 638, 646, 718, 799, 880, 961, 1042, 1123, 1204, 1285, 1303, 1312, 1321, 1330, 1339, 1348, 1357, 1359, 1360, 1361, 1362, 1363

Offset

1,1

Links

Table of n, a(n) for n=1..43.

Mathematica

Select[Range[1500], DigitCount[#, 9, 7]==2&] (* Harvey P. Dale, Jan 16 2015 *)

Crossrefs

Cf. A007095.

Sequence in context: A044574 A255794 A181465 * A044321 A044702 A063320

Adjacent sequences: A043479 A043480 A043481 * A043483 A043484 A043485

Keyword

nonn,base

Author

Clark Kimberling

Status

approved