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Search: id:A015022
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A015022 q-factorial numbers for q=-8. +0
1
1, -7, -399, 181545, 661005345, -19253102683815, -4486300228074519855, 8363069275661695069900425, 124719129516554187174725699959425, -14879571721119777957252576955487113947975 (list; graph; listen)
OFFSET

1,2

LINKS

Index entries for sequences related to factorial numbers

FORMULA

prod_{k=1}^{k=n} {(q^k - 1) / (q - 1)}

CROSSREFS

Adjacent sequences: A015019 A015020 A015021 this_sequence A015023 A015024 A015025

Sequence in context: A009712 A128793 A042527 this_sequence A099125 A099742 A027876

KEYWORD

sign,easy

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.


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