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 A078981 #12 Aug 05 2024 12:45:40 %S A078981 1,5,6,17,40,97,137,371,2734,14041,16775,30816,47591,125998,299587, %T A078981 5818151,6117738,18053627,24171365,187253182,211424547,398677729, %U A078981 3799524108,4198201837,16394129619,20592331456,36986461075,94565253606 %N A078981 Denominators of continued fraction convergents to sinh(1). %t A078981 Convergents[Sinh[1],30]//Denominator (* _Harvey P. Dale_, Apr 17 2022 *) %o A078981 (PARI) a(n)=component(component(contfracpnqn(contfrac(sinh(1),n+1)),1),2) %Y A078981 Cf. A068139 (continued fraction), A073742 (decimal expansion), A078980 (numerators). %K A078981 frac,nonn %O A078981 0,2 %A A078981 _Benoit Cloitre_, Dec 20 2002 %E A078981 Offset changed by _Andrew Howroyd_, Aug 05 2024