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 A144295 #14 Sep 30 2024 17:52:56
%S A144295 1,2,4,12,82,231,380,2990,20954,40953,42852,182492,859647,8039644,
%T A144295 11990003,78269808,3263358159,6941215856
%N A144295 Where records occur in A144294.
%o A144295 (PARI) f(n)=my(k=n+(sqrtint(4*n)+1)\2); forprime(p=2, , if(!issquare(Mod(k, p)), return(p))); \\ A144294
%o A144295 lista(nn) = {my(v=vector(nn, n, f(n))); my(m=0, nm=0); for (n=1, nn, nm = v[n]; if (nm > m, print1(n, ", "); m = nm;););} \\ _Michel Marcus_, Jun 25 2021
%Y A144295 Cf. A144294, A144296.
%K A144295 nonn,more
%O A144295 1,2
%A A144295 _N. J. A. Sloane_, Dec 03 2008
%E A144295 a(9)-a(12) from _R. J. Mathar_, Dec 04 2008
%E A144295 a(13)-a(15) from _Michel Marcus_, Jun 25 2021
%E A144295 a(16)-a(18) from _Michael S. Branicky_, Sep 30 2024