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Search: id:A094116
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A094116 Partial sums of A093348. +0
1
0, 1, 1, 2, 2, 7, 11, 16, 20, 25, 25, 26, 26, 27, 27, 32, 36, 41, 45, 50, 50, 51, 51, 52, 52, 77, 101, 126, 150, 175, 195, 216, 236, 257, 277, 302, 326, 351, 375, 400, 420, 441, 461, 482, 502, 527, 551, 576, 600, 625, 625, 626, 626, 627, 627, 632, 636, 641, 645, 650 (list; graph; listen)
OFFSET

1,4

FORMULA

a(5^k)=(25^k-1)/12

PROGRAM

(PARI) a(n)=sum(k=1, n, -sum(i=1, k-1, (-1)^i*5^valuation(i, 5)))

CROSSREFS

Sequence in context: A000024 A005223 A118680 this_sequence A079476 A005298 A063692

Adjacent sequences: A094113 A094114 A094115 this_sequence A094117 A094118 A094119

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), May 03 2004

page 1

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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