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A038787
An intermediate sequence for nonisomorphic circulant self-complementary directed p^2-graphs, indexed by odd primes p.
3
2, 6, 12, 104, 356, 4134, 14572, 190652, 9588156, 35791472, 1908889156, 27487843256, 104715393912, 1529755308212, 86607687722856, 4969489243995032, 19215358445940816, 1117984489315857512, 16865594581677305360, 65588423375098872068, 3874762242354582408912
OFFSET
1,1
LINKS
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.
FORMULA
a(p^2) = A038791(p^2) for p=4k-1.
a(p^2) = A038786(p^2) - A038785(p^2) + A038788(p^2).
CROSSREFS
Cf. A038785.
Sequence in context: A129085 A274941 A141288 * A144098 A259140 A075071
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, May 04 2000
EXTENSIONS
More terms from Valery A. Liskovets, May 09 2001
More terms and offset corrected by Sean A. Irvine, Feb 14 2021
STATUS
approved