By Doron Zeilberger
This paper is an ode to my academic great-grandfather, Willy FELLER, not forgetting my equally awesome biological great-grandfather Adolf Pinner. If I only had a quarter of the patience that these two had, I would be able to milk the generating function (F(z;t1,t2,t3,t4) of the paper) much more. But then again, it is nice of me to leave you some of the fun.