An arrangement of 
points such that 
of them are collinear.
Near-Pencil
See also
General Position, Ordinary Line, PencilExplore with Wolfram|Alpha
References
Guy, R. K. "Unsolved Problems Come of Age." Amer. Math. Monthly 96, 903-909, 1989.Kelly, L. M. and Moser, W. O. J. "On the Number of Ordinary Lines Determined by
Points." Canad. J. Math. 1,
210-219, 1958.Referenced on Wolfram|Alpha
Near-PencilCite this as:
Weisstein, Eric W. "Near-Pencil." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Near-Pencil.html