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Search: id:A136411
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| A136411 |
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a(n)=product{k=1..n, (2k-1)^(2*n-2*k+1))}. |
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+0
1
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| 1, 3, 135, 212625, 21097715625, 207248662456171875, 291128066470548703880859375, 79746389028864195813528714933837890625, 5570294521107277357810167397301815834831695556640625
(list; graph; listen)
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OFFSET
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1,2
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MATHEMATICA
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Table[Product[(2*k - 1)^(2*n - 2*k + 1), {k, 1, n}], {n, 1, 10}] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), May 18 2008
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CROSSREFS
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Cf. A136807, A087315, A000178, A055209.
Adjacent sequences: A136408 A136409 A136410 this_sequence A136412 A136413 A136414
Sequence in context: A101721 A065973 A110973 this_sequence A037120 A082923 A049677
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KEYWORD
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easy,nonn
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AUTHOR
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Ctibor O. Zizka (ctibor.zizka(AT)seznam.cz), Mar 31 2008
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EXTENSIONS
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More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), May 18 2008
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