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A256984
Maximal number of joints that can be formed by n lines in space.
0
0, 0, 0, 1, 1, 2, 4, 4, 5, 7, 10
OFFSET
0,6
COMMENTS
A joint is a point in space where three non-coplanar lines intersect.
It is not completely certain that a(9)=7 has been proved.
LINKS
Joseph Zurier, The Joints Problem in Incidence Geometry (Video), Part 1, Experimental Math Seminar, Rutgers University, Apr 23 2015
Joseph Zurier, The Joints Problem in Incidence Geometry (Video), Part 2, Experimental Math Seminar, Rutgers University, Apr 23 2015
CROSSREFS
Sequence in context: A147534 A118001 A182414 * A111138 A349462 A340761
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Apr 24 2015
STATUS
approved