A043776 Numbers n such that number of runs in the base 3 representation of n is congruent to 0 mod 4.

30, 32, 33, 34, 46, 47, 48, 50, 57, 59, 60, 61, 64, 65, 69, 70, 84, 86, 87, 88, 90, 93, 95, 98, 99, 103, 105, 106, 111, 113, 114, 115, 127, 128, 129, 131, 136, 137, 139, 143, 144, 147, 149, 152, 154, 155, 156, 158, 165, 167, 168, 169

Offset

1,1

Links

Table of n, a(n) for n=1..52.

Mathematica

Select[Range[200], Divisible[Length[Split[IntegerDigits[#, 3]]], 4]&] (* Harvey P. Dale, Sep 10 2017 *)

Crossrefs

Sequence in context: A042858 A175514 A043584 * A043784 A043789 A043795

Adjacent sequences: A043773 A043774 A043775 * A043777 A043778 A043779

Keyword

nonn,base

Author

Clark Kimberling

Status

approved