3 ms·
didn't even think of that one! :)
by Torn 17y ago
didn't even think of that one! :)
- karanbhangui 17y agoor plain math: n(n+1)/2
- mahmud 17y agoHow quickly can you generalize the plain math formula to these sequences: http://www.research.att.com/njas/sequences/index.html http://www.research.att.com/njas/sequences/index.html