%N For a number n, let r=n+1, s = the least number greater than r and coprime to nr; n is here if nr-s, rs-n and sn-r are all prime.
%e 14 is here because 14x15-17, 15x17-14 and 17x14-15 are all prime.
%A _J. M. Bergot_, Apr 30 2007
%E Edited by Don Reble (djr(AT)nk.ca), Jan 20 2008