What is the nth term for 1 4 9 16 25 36?

Answer 1

There are the square numbers 1² = 1, 2² = 4, 3² = 9, etc; thus the nth term is n squared:

t(n) = n²

Answer 2

Those are square numbers: 1 squared, 2 squared, etc.Or you could figure out the differences between two successive numbers - they increase by two at a time.