Then there are the Heegner approximations, log(744 + 96^3) / sqrt(19) 7.7 digits log(744 + 960^3) / sqrt(43) 13.9 log(744 + 5280^3) / sqrt(67) 18.4 log(744 + 640320^3) / sqrt(163) 31.1 which AFAIK might go by some other name. -- Don Reble djr@nk.ca