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 A005485 M4781 #22 Jul 05 2024 10:07:09 %S A005485 1,1,11,23,379,781,1160,5421,12002,17423,377885,395308,1563809, %T A005485 8214353,9778162,27770677,37548839,65319516,168187871,1915386097, %U A005485 9745118356,11660504453,44726631715,56387136168,157500904051,4308911545545,17393147086231,21702058631776 %N A005485 Denominators of continued fraction convergents to cube root of 7. %D A005485 D. H. Lehmer, Guide to Tables in the Theory of Numbers. Bulletin No. 105, National Research Council, Washington, DC, 1941, p. 67. %D A005485 P. Seeling, Verwandlung der irrationalen Groesse ... in einen Kettenbruch, Archiv. Math. Phys., 46 (1866), 80-120. %D A005485 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A005485 Vincenzo Librandi, <a href="/A005485/b005485.txt">Table of n, a(n) for n = 0..999</a> %t A005485 Denominator[Convergents[7^(1/3), 40]] (* _Vincenzo Librandi_, Sep 08 2013 *) %o A005485 (PARI) a(n)= contfracpnqn(contfrac(7^(1/3), n))[2, 1]; \\ _Michel Marcus_, Sep 07 2013 %Y A005485 Cf. A005482, A005482, A005484 (numerators). %K A005485 nonn,frac %O A005485 0,3 %A A005485 _N. J. A. Sloane_ %E A005485 More terms from _Herman P. Robinson_. %E A005485 More terms from _Michel Marcus_, Sep 07 2013 %E A005485 Inserted a(27) by _Vincenzo Librandi_, Sep 08 2013 %E A005485 Offset changed by _Andrew Howroyd_, Jul 05 2024