From: Paul Reilly (paul@phyast.pitt.edu)
Date: Tue 17 Aug 1993 - 21:17:36 EEST
Burt asks about:
4 points allows for up to 10 (1+2+3+4)
These are the 'triangular numbers'. (=#points in a triangle of n points on
a side:
* 1
* * + 2
* * * + 3
* * * * + 4
= 10)
More another time,
paul
0,,
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