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 A282444 #25 Aug 12 2022 09:17:39 %S A282444 1,2,5,8,14,50,119,200,269,299,1154,5369,47249,48299,58643,130325, %T A282444 148979,282074,887480 %N A282444 Numbers k such that A282442(k) = k + 1. %C A282444 a(18) > 10^6. - _Hakan Icoz_, Apr 09 2021 %H A282444 Mathematics Stack Exchange user Sheljohn, <a href="http://math.stackexchange.com/questions/2145924">A curious sequence</a>. %o A282444 (Python) %o A282444 def A282442(): %o A282444 n = 0 %o A282444 while True: %o A282444 n += 1 %o A282444 h = n %o A282444 k = 2 %o A282444 while h >= k: %o A282444 h = h % k %o A282444 h = n - h %o A282444 k += 1 %o A282444 yield k %o A282444 n=0 %o A282444 for i in A282442(): %o A282444 n += 1 %o A282444 if i == n+1: %o A282444 print(n) # _Hakan Icoz_, Apr 09 2021 %Y A282444 Cf. A282442. %K A282444 nonn,more %O A282444 1,2 %A A282444 _Peter Kagey_, Feb 15 2017 %E A282444 a(13)-a(19) from _Hakan Icoz_, Apr 09 2021