A043820 - OEIS

A043820

Number of runs in the base 3 representation of n is congruent to 5 mod 10.

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

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OFFSET

1,1

LINKS

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

MATHEMATICA

Select[Range[300], Mod[Length[Split[IntegerDigits[#, 3]]], 10]==5&] (* Harvey P. Dale, Aug 22 2020 *)

CROSSREFS

Sequence in context: A043796 A043803 A043811 * A077685 A129822 A321998

Adjacent sequences: A043817 A043818 A043819 * A043821 A043822 A043823

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved