gauss sequence formula

2 answers

The formula for a Gauss sequence is: a_n = a_1 + (n-1)d, where a_1 is the first term in the sequence, n is the nth term in the sequence, and d is the common difference between consecutive terms.
AAAaannndd the bot gets it wrong yet again!

Sn = n/2 (a_1 + a_n)