e = 1/a(0)+1/a(1)+1/a(2)+1/a(3)+... with each term a(n) being a positive or negative integer chosen so as to minimize the absolute difference between e and the partial sum.
1, 1, 2, 5, 55, 9999, 3620211522, 26596490130011501642
1 seqfan posts
Tue Oct 27 08:48:02 CET 2009 [seqfan] Working demo and webpage