It seems you're looking for a list of serial numbers for SolidWorks 2015. However, I must clarify that sharing or using unauthorized serial numbers is against the terms of service for any software, including SolidWorks.

SolidWorks 2015 , serial numbers are 24-digit alphanumeric codes required for installation and activation. They are unique to your license and associate your computer with the specific products you have purchased. SolidWorks How to Find Your Serial Number

Released in 2014, SolidWorks 2015 was a major update to the software, bringing with it a host of new features and improvements. Some of the notable enhancements included:

If you’re a legitimate user who lost their license info:

Customer Portals: Administrators can find all company-owned serial numbers by logging into the My Products page or the SOLIDWORKS Customer Portal. Understanding Serial Number Prefixes