11-3-2011, 01:45 PM
|
#140
|
|
D6 FFR Legacy Player
  
Join Date: Jan 2009
Age: 33
Posts: 4,342
|
Re: THE project euler thread
Quote:
Originally Posted by Knut.Angstrom
Do you know the definition of triangle numbered problem?
|
Anything of the form k(k+1)/2 for some k in the natural numbers:
1, 3, 6, 10, 15, 21, etc.
Also, got #216 and #218 (o: Thinking about #241 now.
|
|
|