Denominator of convergents to e + 1/e.

Terms

a(0) =1a(1) =11a(2) =12a(3) =23a(4) =35a(5) =58a(6) =325a(7) =383a(8) =4155a(9) =12848a(10) =119787a(11) =132635a(12) =385057a(13) =9374003a(14) =1331493483a(15) =4003854452a(16) =5335347935a(17) =20009898257a(18) =85374940963a(19) =105384839220a(20) =717683976283a(21) =823068815503