Search: id:A095823 Results 1-1 of 1 results found. %I A095823 %S A095823 1,4,18,32,600,4320,11760,322560,3265920,1728000,439084800,821145600, %T A095823 817689600,1220496076800,19615115520000,111588212736000,863812325376000, %U A095823 115242726703104000,15722836107264000,3742926166425600000 %N A095823 Denominators of certain upper bounds for Euler's number e. %C A095823 For the numerators see A095822. %C A095823 e:=sum(1/k!,k=0..infty) has (trivial) upper bound r(n):= A095822(n)/a(n), for every n>=1. See the W. Lang link. %D A095823 M. Barner and F. Flohr, Analysis I, de Gruyter, 5te Auflage, 2000; pp. 117/8. %D A095823 E. Kuz'min and A. I. Shirshov: On the number e, pp. 111-119, eq.(6), in: Kvant Selecta: Algebra and Analysis, I, ed. S. Tabachnikov, Am.Math.Soc., 1999 %H A095823 W. Lang, r(n) numbers and comments. %F A095823 a(n)= denominator(r(n)), with rational r(n):= sum(1/k!, k=0..n) + 1/(n*n!), n>=1, written in lowest terms. For n*n! see A001563(n). %e A095823 The positive rationals r(n), n>=1: 3/1, 11/4, 49/18, 87/32, 1631/600, 11743/4320, 31967/11760, ... %Y A095823 Sequence in context: A130656 A053191 A003474 this_sequence A092116 A083969 A110621 %Y A095823 Adjacent sequences: A095820 A095821 A095822 this_sequence A095824 A095825 A095826 %K A095823 nonn,easy,frac %O A095823 1,2 %A A095823 Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Jun 11 2004 Search completed in 0.001 seconds