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 A351106 #15 Feb 18 2023 08:06:12 %S A351106 1,1,3,1,6,23,2,17,118,1470,3,47,762,23878,914525,5,133,5724,420894, %T A351106 40285572 %N A351106 Triangle read by rows: T(m,n) is the number of simple paths for a Racetrack car (using Moore neighborhood) with initial velocity zero, going from one corner to the diagonally opposite corner on an m X n grid, 1 <= n <= m. %H A351106 Wikipedia, <a href="https://en.wikipedia.org/wiki/Racetrack_(game)">Racetrack</a> %e A351106 Triangle begins: %e A351106 m\n| 1 2 3 4 5 6 %e A351106 ---+------------------------------ %e A351106 1 | 1 %e A351106 2 | 1 3 %e A351106 3 | 1 6 23 %e A351106 4 | 2 17 118 1470 %e A351106 5 | 3 47 762 23878 914525 %e A351106 6 | 5 133 5724 420894 40285572 ? %Y A351106 Cf. A291896 (column n=1), A329118, A351041, A351107 (main diagonal), A351108, A351110. %K A351106 nonn,tabl,more %O A351106 1,3 %A A351106 _Pontus von Brömssen_, Jan 31 2022