A061849 -id:A061849 - cp's OEIS frontend

A061848 An intermediate sequence for nonisomorphic circulant self-complementary undirected p^2-graphs, indexed by odd primes p.

0, 2, 0, 0, 12, 38, 0, 0, 1172, 0, 14572, 52536, 0, 0, 2581112, 0, 35791472, 0, 0, 1908889156, 0, 0, 399822600756, 5864062716964, 22517998136936, 0, 0, 333599972407532, 1286742760265468, 0, 0, 4340410370789890656, 0, 255263053128088930472, 0

Offset: 3

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Valery A. Liskovets, May 09 2001

nonn

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

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.

Cf. A038787.

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

More terms from Sean A. Irvine, Mar 09 2023

cp's OEIS Frontend

A061848 An intermediate sequence for nonisomorphic circulant self-complementary undirected p^2-graphs, indexed by odd primes p.

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