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Search: id:A088055
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A088055 a(n) = G(n) - A(n), where G(n) = Sum of the first n terms of a geometric progression with first term n and common ratio n. A(n) = Product of first n terms of an arithmetic progression with first term n and common difference n. +0
1
0, 2, 123, 5804, 371095, 33536334, 4149695921, 676438175160, 140586711200271, 36287988888888890, 11388728579602327129, 4270826370748686175140, 1886009588224061851054127, 968725766842917544760889030 (list; graph; listen)
OFFSET

1,2

FORMULA

a(n) = A031972(n) -A061711(n). a(n) = {(n^(n+1)-1)/(n-1) - 1} - { n!*n^n}

CROSSREFS

Cf. A061711, A031972.

Adjacent sequences: A088052 A088053 A088054 this_sequence A088056 A088057 A088058

Sequence in context: A074490 A056638 A024244 this_sequence A065705 A042921 A123006

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 20 2003

EXTENSIONS

Corrected and extended by David Wasserman (wasserma(AT)spawar.navy.mil), Jun 27 2005

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.


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