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 A065647 #6 Dec 11 2021 18:59:37 %S A065647 0,1,1,2,33,68,169,406,981,1387,25947,53281,132509,1510880,1643389, %T A065647 3154269,7951927,34961977,42913904,721584441,2207667227,5136918895, %U A065647 22755342807,482999117842,988753578491,400928198406697,802845150391885 %N A065647 Numerators of convergents to twin prime constant. %e A065647 Convergents to twin prime constant: 0, 1, 1/2, 2/3, 33/50, 68/103, 169/256, 406/615, 981/1486, 1387/2101, 25947/39304, ... %Y A065647 Cf. A005597 (decimal expansion), A065645 (continued fraction), A065646 (denominators of convergents to twin prime constant), A062270, A062271. %K A065647 frac,nonn %O A065647 0,4 %A A065647 _Vladeta Jovovic_, Nov 08 2001