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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..13.

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: A274941 A141288 A062954 * A144098 A259140 A075071

Adjacent sequences:  A038784 A038785 A038786 * A038788 A038789 A038790

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, May 04 2000

EXTENSIONS

More terms from Valery A. Liskovets, May 09 2001

STATUS

approved

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Last modified April 22 08:06 EDT 2019. Contains 322329 sequences. (Running on oeis4.)