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 A329370 #16 Feb 01 2022 00:30:42 %S A329370 0,0,16,136,3102,58356,1092618 %N A329370 Number of semi-magic (only long lines are magic) knight's tours on a 4 X 2n board. %H A329370 G. P. Jelliss, <a href="https://www.mayhematics.com/t/mk1.htm">Semi-magic Knight's Tours</a> %H A329370 Awani Kumar, <a href="https://arxiv.org/abs/1802.09340">Studies in Tours of Knight on Rectangular Boards</a>, arXiv:1802.09340 [math.GM], 2018. %e A329370 Example 4 X 10 semi-magic knight's tour (only long lines are magic, Magic Constant is 205): %e A329370 1 22 3 40 17 34 9 30 13 36 %e A329370 4 25 20 27 8 29 16 35 10 31 %e A329370 21 2 23 6 39 18 33 12 37 14 %e A329370 24 5 26 19 28 7 38 15 32 11 %Y A329370 Cf. A328816. %K A329370 nonn,more %O A329370 1,3 %A A329370 _Awani Kumar_, Nov 12 2019