1,9
A. Betten, G. Brinkmann and T. Pisanski, Counting symmetric configurations v_3, Discrete Appl. Math., 99 (2000), 331-338.
Cf. A001403, A023994.
Sequence in context: A051720 A022693 A146478 this_sequence A113072 A122918 A129903
Adjacent sequences: A098801 A098802 A098803 this_sequence A098805 A098806 A098807
nonn,hard
N. J. A. Sloane (njas(AT)research.att.com), Nov 05 2004
Search completed in 0.002 seconds