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A102761
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Same as A000179 except here a(1) = -1.
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1
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1, -1, 0, 1, 2, 13, 80, 579, 4738, 43387, 439792, 4890741, 59216642, 775596313, 10927434464, 164806435783, 2649391469058, 45226435601207, 817056406224416, 15574618910994665, 312400218671253762, 6577618644576902053
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,5
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COMMENTS
| Created to simplify the formula for A000186.
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REFERENCES
| J. Riordan, An Introduction to Combinatorial Analysis, Wiley, 1958, p. 197.
Vladimir Shevelev, SPECTRUM OF PERMANENTS VALUES AND ITS EXTREMAL MAGNITUDES ..., Arxiv preprint arXiv:1104.4051, 2011.
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CROSSREFS
| Cf. A000179, A000186.
Sequence in context: A037571 A179237 A000179 * A189087 A037739 A037634
Adjacent sequences: A102758 A102759 A102760 * A102762 A102763 A102764
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KEYWORD
| sign,easy
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AUTHOR
| N. J. A. Sloane, Apr 04 2010, following a suggestion from Vladimir Shevelev (shevelev(AT)bgu.ac.il)
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