Optimal ascending continued fraction expansion of e - 2.

Terms

a(0) =1a(1) =-4a(2) =8a(3) =67a(4) =266a(5) =9757a(6) =47748a(7) =-97258a(8) =-251115a(9) =671488a(10) =-4724169a(11) =-28356343a(12) =125269419a(13) =-498668029a(14) =-5426804695a(15) =15313259790a(16) =-40462770156a(17) =105160602326