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A038777 Number of nonisomorphic circulant directed p^2-graphs, indexed by odd primes p. 4
51, 839094, 6701785562464, 12083890870771962491424805135950456, 2398361661260968891411175234090908403781860478604, 1828394251506568537335964147598606029781088871684165132246643817787950377304813841866 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..8.

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.

CROSSREFS

Cf. A049297.

Sequence in context: A238567 A198251 A135531 * A281979 A172695 A172786

Adjacent sequences:  A038774 A038775 A038776 * A038778 A038779 A038780

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 March 22 04:32 EDT 2019. Contains 321406 sequences. (Running on oeis4.)