Hi, I have read your email with some interest. As far as I can see, your formula resembles that of Legendre. You can find this explained in the first chapter of my book: Prime Numbers and Methods of Factorization, 2nd ed., Birkhaüser, Boston 1994.
Regards, Hans Riesel _______________________________________________ Prime mailing list [email protected] http://hogranch.com/mailman/listinfo/prime
