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 A357908 #55 Nov 09 2022 10:42:17 %S A357908 5,20,12,66,44,121,41,89,101,225,72,92,548,199,297,1486,490,1001,735, %T A357908 455,420,611,772,673,187,1612,3690,581,417,2584,7574,162,1483,1048, %U A357908 689,330,1320,4007,3739,2884,528,3376,3045,3658,2869,411,935,303,1751,1122,376,5506,599,13191,494 %N A357908 Index of the first occurrence of n-th prime in Van Eck's sequence (A181391), or 0 if n-th prime never appears. %C A357908 The first 85669653 terms exist and are less than 10^12, see A181391. - _Charles R Greathouse IV_, Nov 09 2022 %F A357908 a(n) > prime(n). - _Charles R Greathouse IV_, Nov 09 2022 %e A357908 a(3) = 12 because position 12 of Van Eck's sequence (A181391) is the first occurrence of 3rd prime number, i.e., 5. %Y A357908 Cf. A181391. %K A357908 nonn %O A357908 1,1 %A A357908 _G. L. Honaker, Jr._, Nov 08 2022