A038783 An intermediate sequence for nonisomorphic circulant undirected p^2-graphs, indexed by odd primes p.

4, 10, 24, 208, 700, 8230, 29144, 381304, 19175140, 71582944, 3817763740, 54975633976, 209430787824, 3059510616424, 173215372864600, 9938978487990064, 38430716856090160, 2235968978631715024, 33731189163354610720, 131176846748288854980, 7749524484709164817824

Offset: 1

Author

N. J. A. Sloane, May 04 2000

Keywords

• nonn
• easy

Links

• 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. A038781.

Formula

a(n) = A038782(n) - A038781(n) + A038784(n).

Extensions

More terms from Valery A. Liskovets, May 09 2001

More terms and offset corrected by Sean A. Irvine, Feb 14 2021