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Search: id:A079922
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| A079922 |
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Solution to the Dancing School Problem with n girls and n+3 boys: f(n,3). |
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+0
1
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| 4, 13, 36, 90, 212, 478, 1044, 2227, 4664, 9627, 19640, 39684, 79544, 158364, 313464, 617365, 1210588, 2364713, 4603388, 8934142, 17291756, 33385018, 64311660, 123634471, 237233712, 454429239, 869095472, 1659708488
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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f(g,h) = per(B), the permanent of the (0,1)-matrix B of size g X g+h with b(i,j)=1 if and only if i <= j <= i+h. See A079908 for more information.
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REFERENCES
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Jaap Spies, Dancing School Problems, Nieuw Archief voor Wiskunde 5/7 nr. 4, Dec 2006, p. 283-285.
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LINKS
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Jaap Spies, Dancing School Problems, Permanent solutions of Problem 29.
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CROSSREFS
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Cf. A079908-A079928.
Adjacent sequences: A079919 A079920 A079921 this_sequence A079923 A079924 A079925
Sequence in context: A095941 A002727 A036629 this_sequence A053563 A036636 A036643
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KEYWORD
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nonn
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AUTHOR
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Jaap Spies (j.spies(AT)hccnet.nl), Jan 28 2003
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EXTENSIONS
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More terms Dec 15 2006
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