A043451 Numbers having three 7's in base 8.

511, 1023, 1535, 2047, 2559, 3071, 3583, 3647, 3711, 3775, 3839, 3903, 3967, 4031, 4039, 4047, 4055, 4063, 4071, 4079, 4087, 4088, 4089, 4090, 4091, 4092, 4093, 4094, 4607, 5119, 5631, 6143, 6655, 7167, 7679, 7743, 7807

Offset

1,1

Links

Table of n, a(n) for n=1..37.

Mathematica

Select[Range[8000], DigitCount[#, 8, 7]==3&] (* Harvey P. Dale, Sep 13 2022 *)

Crossrefs

Cf. A007094.

Sequence in context: A277172 A023691 A045118 * A158011 A032656 A031899

Adjacent sequences: A043448 A043449 A043450 * A043452 A043453 A043454

Keyword

nonn,base

Author

Clark Kimberling

Status

approved