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 A342467 #23 May 08 2024 02:27:13 %S A342467 0,4,18,700,13123,316424,7317145,176476738,4279366371 %N A342467 a(n) is the number of n-th order magic triangles. %C A342467 The Trotter reference gives the value 1356 = 76 * 18 for a(5), which is incorrect since 76 is the number of corner groupings and 18 is the maximum number of solutions in any grouping. - _Andrew Howroyd_, Feb 05 2022 %H A342467 Andrew Howroyd, <a href="/A342467/a342467.txt">PARI Program</a>, Feb 2022. %H A342467 Terrel Trotter, <a href="https://www.trottermath.net/simpleops/magictri.html">Normal Magic Triangles of Order n</a>, Journal of Recreational Mathematics Vol. 5, No. 1, 1972, pp. 28-32. %H A342467 Terrel Trotter, <a href="https://www.trottermath.net/simpleops/pmp.html">Perimeter-Magic Polygons</a>, Journal of Recreational Mathematics Vol. 7, No. 1, 1974, pp. 14-20. %F A342467 a(n) < A351223(n). - _Stefano Spezia_, Feb 05 2022 %o A342467 (PARI) \\ See Links. %Y A342467 Row sums of A342384. %Y A342467 Cf. A016777, A179805, A285009, A341740, A351223. %K A342467 nonn,more %O A342467 2,2 %A A342467 _Stefano Spezia_, Mar 13 2021 %E A342467 a(5) corrected by _Andrew Howroyd_ and _Stefano Spezia_, Feb 05 2022 %E A342467 a(6)-a(10) from _Andrew Howroyd_, Feb 05 2022