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 A048433 #16 Jun 18 2021 01:12:21 %S A048433 5,212,212,555,78287,936639,4347434,261565162,557191755,22113131122, %T A048433 35779797753,2583864683852,5269108019625,186632555236681, %U A048433 671032363230176,25566825552866552,63506697679660536,1599153538353519951,1599153538353519951 %N A048433 Smallest numerator of fraction using palindromes that approximates 'phi' to at least n digits after the decimal point. %e A048433 n=4: 555/343 = 1.6180... correct to four digits after the decimal point. %Y A048433 Denominators in A048434. %Y A048433 Cf. A001622 (phi). %K A048433 nonn,frac,base,more %O A048433 1,1 %A A048433 _Patrick De Geest_, Apr 15 1999 %E A048433 a(1) corrected and a(14)-a(19) from _Sean A. Irvine_, Jun 17 2021