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 A351698 #4 Feb 26 2022 10:49:48 %S A351698 16,137,72,2210,6097,1611,30882,60405,12267,190927,315341,55665, %T A351698 769895,1149580,185985,2383791,3328572,507402,6166615,8208662,1198386, %U A351698 14003642,17984950,2540862,28808442,35982891,4954230,54843640,66993635,9034245,98085416,117653107,15596757 %N A351698 24*a(n)+1 is the numerator of the squared circumradius of a cyclic quadrilateral with sides n, n+1, n+2, n+3. %F A351698 a(n) = (A351696(n) - 1)/24. %Y A351698 Cf. A351696, A351697 (denominators). %K A351698 nonn %O A351698 1,1 %A A351698 _Hugo Pfoertner_, Feb 26 2022