The numerical value of 2 to the power of 1?

2^(1) = 2

Remember this table of powers.

n^(0) = 1

n^(1) = n

n^(2) = n^(2)

e.g.

2^(0) = 1

2^(1) = 2

2^(2) = 4

et seq.,

NB When the index number of '1' is used , it is only there as a guide to manipulating indices ( index numbers).