Question

Give an example for a function which is not a sequence.

Answer 1

Definition: A sequence is a function whose domain is the set of natural numbers or a

subset of the natural numbers. We usually use the symbol an to represent a sequence,

where n is a natural number and an is the value of the function on n.

A sequence may be finite or infinite
Therefore any funtions which doesn't have a domain is not a natural number is enough
Eg;root x ., fractions [without unity in denominator], cube root of x etc.