Question

find the next 3 terms, the nth term and the 20th term!
1 2 3 4 5
3 20 49 90 143

Answer 1

a(n) = 6n^2-n-2

Answer 2

next 3 terms are 208, 285, 374 and 20th term: 2378
\[a(n) = 6n^2-n-2\]

Answer 3

how did you find that? like the nth term?

Answer 4

PLEASE! how did you find the nth term????