Who's got a CLR arbitrary precision library for SQL Server?
BWAAAA-HAAAA!!! SQL Server is a very small park for these types of things. That brings me back to what I said earlier... I believe that if you need Fibonacce numbers larger than 70 or even the max in SQL Server, then you're probably using the wrong tool. 😉
--Jeff Moden
Change is inevitable... Change for the better is not.