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 A002353 M1733 N0686 #27 Jul 04 2024 20:41:05 %S A002353 1,2,7,9,43,52,303,355,658,4303,9264,50623,414248,1293367,4294349, %T A002353 18470763,41235875,265886013,1104779927,4685005721,5789785648, %U A002353 22054362665,49898510978,171749895599,736898093374,908647988973,4371490049266,40252058432367 %N A002353 Denominators of convergents to cube root of 3. %D A002353 D. H. Lehmer, Guide to Tables in the Theory of Numbers. Bulletin No. 105, National Research Council, Washington, DC, 1941, p. 67. %D A002353 P. Seeling, Verwandlung der irrationalen Groesse ... in einen Kettenbruch, Archiv. Math. Phys., 46 (1866), 80-120. %D A002353 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). %D A002353 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A002353 Vincenzo Librandi, <a href="/A002353/b002353.txt">Table of n, a(n) for n = 0..999</a> %t A002353 Denominator[Convergents[3^(1/3), 40]] (* _Vincenzo Librandi_, Sep 09 2013 *) %o A002353 (PARI) a(n)= contfracpnqn(contfrac(3^(1/3), n))[2, 1]; \\ _Michel Marcus_, Sep 08 2013 %Y A002353 Cf. A002354 (numerators), A002581. %K A002353 nonn,frac %O A002353 0,2 %A A002353 _N. J. A. Sloane_ %E A002353 More terms from _Michel Marcus_, Sep 08 2013 %E A002353 Offset changed by _Andrew Howroyd_, Jul 04 2024