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A098804
Number of point-transitive configurations of type (n_3).
3
0, 0, 0, 0, 0, 0, 1, 1, 2, 2, 1, 4, 2, 3, 5, 6, 2, 9
OFFSET
1,9
LINKS
A. Betten, G. Brinkmann and T. Pisanski, Counting symmetric configurations v_3, Discrete Appl. Math., 99 (2000), 331-338.
CROSSREFS
Sequence in context: A146478 A289500 A325276 * A191320 A180228 A212320
KEYWORD
nonn,hard,more
AUTHOR
N. J. A. Sloane, Nov 05 2004
STATUS
approved