Answer by JKismyhusbandbae: a^n = 4n + 1
Explanation: So the regular formula for sequence is:
an = a1 + d (n – 1)
a1 = the first term.
d = common difference
n = term number
So in the formula form it would look like this: an: 5 - 4(n-1)
Then I like to solve it as if it were a linear equation in the end you get: a^n = 4n + 1