A197221 - OEIS

%I #12 Jun 08 2017 18:44:51

%S 1,11,12,23,35,58,325,383,4155,12848,119787,132635,385057,9374003,

%T 1331493483,4003854452,5335347935,20009898257,85374940963,

%U 105384839220,717683976283,823068815503,4833028053798,10489124923099,25811277899996,36300402823095

%N Denominator of convergents to e + 1/e.

%H Robert Israel, <a href="/A197221/b197221.txt">Table of n, a(n) for n = 1..1899</a>

%p numtheory:-cfrac(exp(1)+exp(-1), 100, 'ccon'):

%p map(denom, ccon[1..-2]); # _Robert Israel_, Jun 08 2017

%t Denominator[Convergents[E + 1/E, 40]]

%Y Cf.  A137204 (decimal), A197220 (numerators).

%K nonn

%O 1,2

%A _T. D. Noe_, Oct 12 2011