(In reply to re: Interesting observation
by Ady TZIDON)
In my first post I was just thinking about the "13" and I used Upper Case N.
In my second post, I was thinking about "n" as the number of terms, so I used lower case 'n'.
N = 2n+1 by that terminology. Sorry for the confusion
Posted by Larry
on 2014-08-18 17:14:29