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Search: id:A072043
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| A072043 |
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a(n+3) = a(n+2)*a(n+1)*a(n)*(1+1/n), a(1)=a(2)=a(3)=1. |
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+0
1
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| 1, 1, 1, 2, 3, 8, 60, 1728, 967680, 114661785600, 215698302044209000000, 26592225368515593301597083402240000000, 723457119656730571214801208759677424070060705650559470796800000000000
(list; graph; listen)
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OFFSET
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1,4
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MATHEMATICA
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a[1] = a[2] = a[3] = 1; a[n_] := a[n - 1]*a[n - 2]*a[n - 3]*(1 + 1/(n - 3)); Table[ a[n], {n, 1, 13}]
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CROSSREFS
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Sequence in context: A001686 A013205 A042365 this_sequence A095203 A003096 A042815
Adjacent sequences: A072040 A072041 A072042 this_sequence A072044 A072045 A072046
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KEYWORD
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easy,nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), Jul 29 2002
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EXTENSIONS
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Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), Jul 31 2002
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