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A174657 Balanced ternary numbers with more negative trits than positive trits. 4
5, 14, 15, 17, 23, 41, 42, 43, 44, 45, 47, 50, 51, 53, 59, 68, 69, 71, 77, 95, 122, 123, 124, 125, 126, 127, 128, 129, 131, 132, 133, 134, 135, 137, 140, 141, 143, 149, 150, 151, 152, 153, 155, 158, 159, 161, 167, 176, 177, 179, 185, 203, 204, 205, 206, 207, 209 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Numbers for which the sum of trits is negative.

LINKS

Daniel Forgues, Table of n, a(n) for n=1..32685

MATHEMATICA

(* First run the program for A065363 to define balTernDigits *) Select[Range[210], Count[balTernDigits[#], -1] > Count[balTernDigits[#], 1] &] (* Alonso del Arte, Feb 26 2011 *)

PROG

(Python)

def a(n):

    s=0

    x=0

    while n>0:

        x=n%3

        n//=3

        if x==2:

            x=-1

            n+=1

        s+=x

    return s

print([n for n in range(301) if a(n)<0]) # Indranil Ghosh, Jun 07 2017

CROSSREFS

Cf. A174658, A174659, A065363, A140267.

Sequence in context: A272970 A168213 A175485 * A231665 A160709 A067113

Adjacent sequences:  A174654 A174655 A174656 * A174658 A174659 A174660

KEYWORD

base,nonn

AUTHOR

Daniel Forgues, Mar 26 2010

STATUS

approved

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Last modified June 18 10:54 EDT 2021. Contains 345098 sequences. (Running on oeis4.)