A031484 Numbers whose base-7 representation has 2 more 0's than 6's.

49, 98, 147, 196, 245, 344, 345, 346, 347, 348, 350, 357, 364, 371, 378, 392, 441, 490, 539, 588, 687, 688, 689, 690, 691, 693, 700, 707, 714, 721, 735, 784, 833, 882, 931, 1030, 1031, 1032, 1033, 1034, 1036, 1043, 1050, 1057

Offset

1,1

Links

Table of n, a(n) for n=1..44.

Mathematica

Select[Range[1100], DigitCount[#, 7, 6]+2==DigitCount[#, 7, 0]&] (* Harvey P. Dale, Jun 16 2016 *)

Crossrefs

Cf. A007093.

Sequence in context: A044138 A043394 A044519 * A260009 A114013 A235578

Adjacent sequences: A031481 A031482 A031483 * A031485 A031486 A031487

Keyword

nonn,base

Author

Clark Kimberling

Status

approved