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A038779 An intermediate sequence for nonisomorphic circulant directed p^2-graphs, indexed by odd primes p. 1
10, 70, 700, 104968, 1398500, 268439590, 3817763740, 799645010860 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..10.

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)= A038778(p^2) - A038777(p^2) + A038780(p^2)

CROSSREFS

Cf. A038777.

Sequence in context: A037600 A037705 A126505 * A246427 A172499 A215295

Adjacent sequences:  A038776 A038777 A038778 * A038780 A038781 A038782

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 September 20 16:30 EDT 2019. Contains 327242 sequences. (Running on oeis4.)