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 A067746 #10 Sep 08 2022 08:45:05 %S A067746 1,24,19440,3670016,4500000000,255409127424,5159146026151936, %T A067746 4323455642275676160,18580248257778920521728, %U A067746 12451840000000000000000000,162954214196559334212035936256,319540863203713904815925769535488 %N A067746 Denominator of ((3 * n - 2)/(n^(2 * n - 1) * (2 * n - 1) * 4^(n - 1))). %H A067746 D. S. Mitrinovic and Slavko Simic, <a href="http://www.jstor.org/stable/2695786">Special Functions from Long Ago: 5626</a>, Amer. Math. Monthly 109, (2002), p. 83-84. %o A067746 (PARI) vector(20, n, denominator(((3*n - 2)/(n^(2*n - 1)*(2*n - 1)*4^(n - 1))))) \\ _Michel Marcus_, Feb 16 2015 %o A067746 (Magma) [Denominator((3*n-2)/((n^(2*n-1)*(2*n-1)*4^(n-1)))): n in [1..15]]; // _Vincenzo Librandi_, Feb 16 2015 %Y A067746 Cf. A067745. %K A067746 easy,frac,nonn %O A067746 1,2 %A A067746 _Marc LeBrun_, Jan 29 2002 %E A067746 a(12) from _Vincenzo Librandi_, Feb 16 2015