The Nth term for a triangle number is:
0.5n(n+1)
Chat with our AI personalities
It is not possible to determine an nth term from a single number.
A single number, such as 491625 does not define a sequence and so cannot have an nth term.
Nth term With the nth term you substitute the n for the term number (e.g. 50) so the 50th term in 2n+3 would be 2x50+3=103
241688
No, it will be a formula, because "the nth term" means that you have not defined exactly which term it is. So, you make a formula which works for ANY term in the sequence.