Question

Fill in the blank.

An ___________is a function whose domain is the set of positive integers.

Answer 1

sequence...

Answer 2

Note this doesn't hold for bi-infinite sequence.

Answer 3

A sequence is a function whose domain is the natural numbers.


Instead of using the f(x) notation, however, a sequence is listed using the an notation. There are infinite sequences whose domain is the set of all positive integers, and there are finite sequences whose domain is the set of the first n positive integers.

http://people.richland.edu/james/lecture/m116/sequences/sequences.html

Answer 4

it is a sequence

Answer 5

Gramatically speaking, the question begins with "an" and would not be followed by a word beginning with the letter "s." Regardlees, sequence is the most likely answer.