A043780 Number of runs in the base 3 representation of n is congruent to 0 mod 5.

91, 92, 96, 97, 100, 101, 102, 104, 138, 140, 141, 142, 145, 146, 150, 151, 172, 173, 177, 178, 181, 182, 183, 185, 192, 194, 195, 196, 208, 209, 210, 212, 253, 254, 258, 259, 262, 263, 264, 266, 271, 272, 274, 278, 280, 281

Offset

1,1

Links

Table of n, a(n) for n=1..46.

Mathematica

Select[Range[300], Mod[Length[Split[IntegerDigits[#, 3]]], 5]==0&] (* Harvey P. Dale, Jul 03 2019 *)

Crossrefs

Sequence in context: A203363 A103847 A043585 * A043790 A043796 A043803

Adjacent sequences: A043777 A043778 A043779 * A043781 A043782 A043783

Keyword

nonn,base

Author

Clark Kimberling

Status

approved