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A073849 Cumulative sum of initial digits of (n base 3). 0
0, 1, 3, 4, 5, 6, 8, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

FORMULA

a(n) = SUM[from i = 0 to n] Initial-Digit(A007089(n)).

EXAMPLE

n Base 3 Init Cum Sum

0 0 0 0

1 1 1 1

2 2 2 3

3 10 1 4

4 11 1 5

5 12 1 6

CROSSREFS

Cf. A007089, A109453.

Sequence in context: A194081 A163406 A092253 * A136497 A055563 A090161

Adjacent sequences:  A073846 A073847 A073848 * A073850 A073851 A073852

KEYWORD

easy,nonn,base

AUTHOR

Jonathan Vos Post (jvospost3(AT)gmail.com), Aug 28 2005

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Last modified February 14 18:47 EST 2012. Contains 205663 sequences.