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Search: id:A038787
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| A038787 |
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An intermediate sequence for nonisomorphic circulant self-complementary directed p^2-graphs, indexed by odd primes p. |
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+0
4
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| 2, 6, 12, 104, 356, 4134, 14572, 190652, 9588156, 35791472, 1908889156
(list; graph; listen)
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OFFSET
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3,1
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LINKS
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M. Klin, V. A. Liskovets and R. Poeschel, Analytical enumeration of circulant graphs with prime-squared vertices, Sem. Lotharingien de Combin., B36d, 1996, 36 pages.
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FORMULA
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a(p^2)=A038791(p^2) for p=4k-1
a(p^2)= A038786(p^2) - A038785(p^2) + A038788(p^2)
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CROSSREFS
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Cf. A038785.
Sequence in context: A129085 A141288 A062954 this_sequence A144098 A075071 A089423
Adjacent sequences: A038784 A038785 A038786 this_sequence A038788 A038789 A038790
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), May 04 2000
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EXTENSIONS
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More terms from Valery A. Liskovets (liskov(AT)im.bas-net.by), May 09 2001
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