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 A326353 #12 Jul 19 2025 00:40:30 %S A326353 2,2,2,2,2,2,4,4,2,4,6,8,6,4,6,4,4,6,6,6,6,8,8,6,8,6,8,10,8,6,4,4,4,2, %T A326353 4,6,8,6,4,6,4,4,6,6,6,6,8,8,6,8,6,8,10,8,6,4,4,4,2,4,4,4,6,4,2,2,2,2, %U A326353 2,2,2,2,2,2,2,2,4,6,4,6,8,10,8,8,8,6 %N A326353 Manhattan distance of one of the two ants in A326352 to the other ant at iteration n. %H A326353 Jinyuan Wang, <a href="/A326353/b326353.txt">Table of n, a(n) for n = 0..20000</a> %H A326353 Felix Fröhlich, <a href="/A326352/a326352.pdf">Illustration of iterations 0-50</a>, 2019. %H A326353 Wikipedia, <a href="https://en.wikipedia.org/wiki/Langton%27s_ant">Langton's ant</a> %H A326353 Wikipedia, <a href="https://en.wikipedia.org/wiki/Taxicab_geometry">Taxicab geometry</a> %F A326353 a(n) = a(n-104) + 4 for n >= 14476. - _Jinyuan Wang_, Jul 15 2025 %e A326353 See illustrations in Fröhlich, 2019. %Y A326353 Cf. A326352. %K A326353 nonn %O A326353 0,1 %A A326353 _Felix Fröhlich_, Jun 30 2019 %E A326353 More terms from _Jinyuan Wang_, Jul 15 2025