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A098875 Decimal expansion of the sum_{n>0} of n/exp(n). +0
1
9, 2, 0, 6, 7, 3, 5, 9, 4, 2, 0, 7, 7, 9, 2, 3, 1, 8, 9, 4, 5, 4, 1, 3, 5, 2, 2, 7, 1, 6, 4, 9, 9, 6, 0, 2, 8, 8, 1, 6, 5, 5, 6, 2, 6, 6, 5, 0, 5, 5, 1, 1, 5, 2, 3, 5, 3, 9, 6, 0, 4, 0, 9, 7, 2, 2, 0, 4, 7, 1, 9, 7, 4, 6, 5, 0, 2, 4, 4, 5, 6, 8, 6, 7, 3, 6, 9, 9, 7, 3, 2, 8, 3, 4, 3, 4, 7, 9, 4, 7, 2, 5, 3, 9, 7 (list; cons; graph; listen)
OFFSET

0,1

FORMULA

exp(1)/(exp(1)-1)^2

EXAMPLE

.920673594207792318945413522716499602881655626650551152353960409722047197465024456867369973283434794725397...

MAPLE

g:=x->sum(n/exp(n), n=1..x); evalf[110](g(1500)); evalf[110](g(4000));

CROSSREFS

Cf. A001113.

Sequence in context: A046761 A019876 A155696 this_sequence A147711 A096388 A153463

Adjacent sequences: A098872 A098873 A098874 this_sequence A098876 A098877 A098878

KEYWORD

cons,nonn

AUTHOR

Joseph Biberstine (jrbibers(AT)indiana.edu), Nov 03 2004

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


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