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Search: id:A045976
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| A045976 |
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A product related to n-th roots of 1. |
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+0
1
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| 1, 1, 0, 9, 121, 2704, 118336, 4092529, 0, 97734390625, 69057113823721, 61675735716000000, 120510849036513735801, 204044070747203744272384, 0, 12086640655039701533948077217761, 424809992547069296975659357323606889
(list; graph; listen)
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OFFSET
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0,4
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COMMENT
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a(some multiples of 3) = 0 because there are some 3th roots involved.
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REFERENCES
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Related references: Matthews as cited by Dickson, Wendt.
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FORMULA
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a(n) = product ((1+u)^n +1), where u^n = 1, u != 1.
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CROSSREFS
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Sequence in context: A084769 A050353 A112941 this_sequence A053889 A087584 A138438
Adjacent sequences: A045973 A045974 A045975 this_sequence A045977 A045978 A045979
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KEYWORD
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nonn
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AUTHOR
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Luis Gallardo (Luis.Gallardo(AT)univ-brest.fr)
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