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A094117 Partial sums of A093349. 0
0, 1, 1, 2, 2, 3, 3, 10, 16, 23, 29, 36, 42, 49, 49, 50, 50, 51, 51, 52, 52, 59, 65, 72, 78, 85, 91, 98, 98, 99, 99, 100, 100, 101, 101, 108, 114, 121, 127, 134, 140, 147, 147, 148, 148, 149, 149, 150, 150, 199, 247, 296, 344, 393, 441, 490, 532, 575, 617, 660, 702, 745 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..62.

FORMULA

a(7^k)=(49^k-1)/16

PROG

(PARI) a(n)=sum(k=1, n, -sum(i=1, k-1, (-1)^i*7^valuation(i, 7)))

CROSSREFS

Sequence in context: A195952 A236545 A095060 * A097365 A156906 A216245

Adjacent sequences:  A094114 A094115 A094116 * A094118 A094119 A094120

KEYWORD

nonn

AUTHOR

Benoit Cloitre, May 03 2004

STATUS

approved

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Last modified April 19 05:22 EDT 2014. Contains 240738 sequences.