It is probably 2n.
But there are infinitely many polynomials of degree 5, as well as other mathematical functions, that will fit the above 4 points.
For example, one possibility for the nth term is
Un = (n4 - 10n3 + 35n2 - 42n - 24)/4
fucccccccckcckkc
2n
n+2
The nth term is (2n - 12).
If you mean: 3, 4, 5, 6 and 7 then nth term = n+2
It is: nth term = -4n+14
The nth term is 2n So the 20th term is 2 x 20 = 40.
nth term= 6 + (n-1) (2)
The nth term is (2n - 12).
If you mean: 3, 4, 5, 6 and 7 then nth term = n+2
It is: nth term = -4n+14
If the nth term is 8 -2n then the 1st four terms are 6, 4, 2, 0 and -32 is the 20th term number
The nth term is 2n So the 20th term is 2 x 20 = 40.
nth term= 6 + (n-1) (2)
what is the nth term of 4,5,6,7,8
1 2 3 4= n 2 4 6 8 plusing two = 2n answer 2n
The nth term of the sequence is (n + 1)2 + 2.
The nth term is 9n-2
Un = 2n + 2 is one possible answer.
The nth term is: n^2 +2 and so the next number will be 38