Find nth term from 1 2 4 8 16 series?

general
,
1

how to find nth term from 1 2 4 8 16 series?

2

From where this question asked

3

This is Euler totient function

4

This is 2^n series bro
2^0=1
2^1=2
2^2=4…

1 Like
5

Haha u edited this…1 2 4 8 6 to 1 2 4 8 16