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, Generalizations of the Joints Problem, 2015.
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
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Apr 24 2015
STATUS
approved