A031486 - OEIS

A031486

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

48, 97, 146, 195, 244, 293, 307, 314, 321, 328, 335, 337, 338, 339, 340, 341, 440, 489, 538, 587, 636, 650, 657, 664, 671, 678, 680, 681, 682, 683, 684, 783, 832, 881, 930, 979, 993, 1000, 1007, 1014, 1021, 1023, 1024, 1025, 1026

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

OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Range[1100], DigitCount[#, 7, 6]-DigitCount[#, 7, 0]==2&] (* Harvey P. Dale, May 16 2012 *)

CROSSREFS

Cf. A007093.

Sequence in context: A274899 A218486 A043418 * A044186 A044567 A070258

Adjacent sequences: A031483 A031484 A031485 * A031487 A031488 A031489

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

EXTENSIONS

Definition clarified by Harvey P. Dale, May 16 2012

STATUS

approved