A098822 Number of cyclic configurations of type (n_3).

0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 3, 2, 3, 4, 4, 2, 5, 3

Offset: 1

Author

N. J. A. Sloane, Nov 05 2004

Keywords

• nonn
• hard
• more

Links

• A. Betten, G. Brinkmann and T. Pisanski, Counting symmetric configurations v_3, Discrete Appl. Math., 99 (2000), 331-338.
• T. Pisanski, M. Boben, D. Marušic, A. Orbanic, A. Graovac, The 10-cages and derived configurations, Discrete Math. 275 (2004), 265-276.

Crossrefs

Cf. A001403, A023994.

Extensions

a(1)-a(18) from the Betten, Brinkmann and Pisanski article.

a(19) from the Pisanski et al. article.