This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A120343 #5 Mar 30 2012 18:36:04 %S A120343 1,5,16,55,327,935,382,935,9721,21505,303414,623645,14884103,29311315, %T A120343 818168774,1553499695,49825457361,91656482005,4526122187134, %U A120343 8157426898445,1035587163377863,1851735905947015,243143544972989094 %N A120343 Sequence of pairs numerator(s(n)), denominator(s(n)) where s(n) is the n-th partial sum of 1/A119754(n). %C A120343 There are only 78 terms of A119754 known and s(78) is 0.58817497337288808165551740612048298329310794973566 to 50 decimal places. What is sum(1/A119754(k),k=1..infinity)? %F A120343 a(2n-1) = numerator(s(n)), a(2n)=denominator(s(n)), where s(n)=sum(1/A119754(k),k=1..n). %e A120343 a(5)=327, a(6)=935 since s(3)=1/5+1/11+1/17=327/935. %Y A120343 Cf. A119752, A119754. %K A120343 nonn %O A120343 1,2 %A A120343 _Walter Kehowski_, Jun 23 2006 %E A120343 This is not really a sequence. The standard OEIS convention would be to split this into two cross-referenced sequences with keyword "frac". - _N. J. A. Sloane_, Jul 22 2006