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 A102136 #13 Apr 10 2020 15:47:23 %S A102136 4,6,7,12,18,20,121,2280,2521,8123,9072,12411,27520 %N A102136 Iccanobirt prime indices (6 of 15): Indices of prime numbers in A102116. %C A102136 No more terms through 5000. %C A102136 a(14) > 50000. - _Robert Price_, Nov 08 2018 %F A102136 A102116(a(n)) = A102156(n). %t A102136 a[n_] := a[n] = %t A102136 IntegerReverse[a[n - 1]] + IntegerReverse[a[n - 2]] + a[n - 3]; %t A102136 a[0] = 0; a[1] = 0; a[2] = 1; %t A102136 Select[Range[0, 5000], PrimeQ[a[#]] &] (* _Robert Price_, Apr 10 2020 *) %Y A102136 Cf. A000040, A102116, A102131-A102145. %K A102136 nonn,more,base %O A102136 1,1 %A A102136 _Jonathan Vos Post_ and _Ray Chandler_, Dec 31 2004 %E A102136 a(10)-a(13) from _Robert Price_, Nov 08 2018