ac54c749__a_Nintex_workflow___Tim_Jones__Description
[Variable] Related Count [Type] Single line of text [Description] 
Stores the result of a query to get the count of related tasks. This is text instead of a number to avoid unnecessary type casting since I'm using the OData feed and a Web request action. Therefore, if this variable has anything besides "0", the current ID and Date are pushed to the stacks.
Yes, you can do recursion in a Nintex workflow - Tim Jones
Description