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A061848 An intermediate sequence for nonisomorphic circulant self-complementary undirected p^2-graphs, indexed by odd primes p. 0
0, 2, 0, 0, 12, 38, 0, 0, 1172, 0, 14572, 52536, 0, 0, 2581112, 0, 35791472, 0, 0, 1908889156, 0, 0, 399822600756 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

COMMENTS

a(p^2)=0 for p=4k-1

LINKS

Table of n, a(n) for n=3..25.

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)= A061847(p^2) - A061846(p^2) + A061849(p^2)

CROSSREFS

Cf. A038787.

Sequence in context: A302751 A244139 A231031 * A193294 A231049 A231080

Adjacent sequences:  A061845 A061846 A061847 * A061849 A061850 A061851

KEYWORD

nonn

AUTHOR

Valery A. Liskovets, May 09 2001

STATUS

approved

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Last modified November 13 07:13 EST 2019. Contains 329085 sequences. (Running on oeis4.)