# Recursive Sequences

**URL:** <https://cl.desmos.com/t/recursive-sequences/1648>\
**Category:** Questions\
**Created:** [October 7, 2020, 1:38am UTC](https://cl.desmos.com/t/recursive-sequences/1648 "2020-10-07T01:38:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Kevin\_Peters](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/kevin_peters/32/1045_2.png) [@Kevin\_Peters](https://cl.desmos.com/u/Kevin_Peters)\
**Post date:** [October 7, 2020, 1:38am UTC](https://cl.desmos.com/t/recursive-sequences/1648/1 "2020-10-07T01:38:53Z")

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Can CL recognize and check recursive sequences? For example, suppose I want students to enter `a_1=3, a_n=a_{n-1}+5` Is there a way for desmos to recognize that definition or its equivalent as a function that can be checked?