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 A369244 #10 Jan 21 2024 18:09:44 %S A369244 0,14,74,198,10295,65174,40354813,20485574,680909375411,0, %T A369244 17866904665985941,318745032938881 %N A369244 a(n) is the greatest integer k whose arithmetic derivative is equal to the n-th partial sum of primorials, and 0 if no such k exists. %C A369244 a(n) = the largest integer k for which A003415(k) = A143293(n), and 0 if no such k exists. %H A369244 Antti Karttunen, <a href="/A369239/a369239.txt">PARI program for computing terms of this and related sequences</a>. %F A369244 a(n) >= A369243(n). %Y A369244 Cf. A003415, A143293, A369243. %Y A369244 Cf. also A368704. %K A369244 nonn,hard,more %O A369244 1,2 %A A369244 _Antti Karttunen_, Jan 19 2024