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Search: id:A082480
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| A082480 |
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a(n)=product(k=1,n,F(k)+1) where F(k) denotes the k-th Fibonacci number. |
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+0
2
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| 1, 2, 4, 12, 48, 288, 2592, 36288, 798336, 27941760, 1564738560, 140826470400, 20419838208000, 4778242140672000, 1806175529174016000, 1103573248325323776000, 1090330369345419890688000
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Equals row sums (unsigned) of triangle A158472 [From Gary W. Adamson (qntmpkt(AT)yahoo.com), Mar 20 2009]
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MAPLE
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restart:with (combinat):a:= proc(n) option remember; if n=0 then 1 else mul((fibonacci(j)+1), j=1..n-1) fi end: seq (a(n), n=1..17); # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 29 2009]
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PROGRAM
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(PARI) a(n)=prod(k=1, n, fibonacci(k)+1)
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CROSSREFS
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A158472 [From Gary W. Adamson (qntmpkt(AT)yahoo.com), Mar 20 2009]
Sequence in context: A030949 A030888 A030801 this_sequence A093934 A109458 A030963
Adjacent sequences: A082477 A082478 A082479 this_sequence A082481 A082482 A082483
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KEYWORD
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nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 27 2003
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