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A110887 Number of configurations of n skew lines up to isotopy. 0

%I #3 Jun 23 2015 11:20:38

%S 1,1,2,3,7,19,74

%N Number of configurations of n skew lines up to isotopy.

%D A. Borobia and V. F. Mazurovskii, On diagrams of configurations of 7 skew lines in R^3, Amer. Math. Soc. Transl. (2) 173 (1996), 33-40

%D A. Borobia and V. F. Mazurovskii, Nonsingular configurations of 7 lines in RP^3, J. Knot Theory Ramif. 6(6) (1997), 751-783

%D O. Y. Viro and Y. V. Drobotukhina, Configurations of skew lines, Leningrad Math. J. 1(4) (1990), 1027-1050

%K hard,more,nonn

%O 1,3

%A _David Garber_, Sep 20 2005

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Last modified March 29 05:48 EDT 2024. Contains 371265 sequences. (Running on oeis4.)