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A098854
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Number of triangle-free self-polar configurations of type (n_3).
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3
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 2, 6, 40, 303
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,18
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REFERENCES
| A. Betten, G. Brinkmann and T. Pisanski, Counting symmetric configurations v_3, Discrete Appl. Math., 99 (2000), 331-338.
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CROSSREFS
| Cf. A001403, A098702, A023994.
Sequence in context: A027161 A081096 A119692 * A056787 A098852 A120592
Adjacent sequences: A098851 A098852 A098853 * A098855 A098856 A098857
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KEYWORD
| nonn,hard
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Nov 05 2004
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