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 A368396 #18 Jan 25 2024 07:25:55
%S A368396 2,3,13,19,41,277,1873,8641,17098272199297
%N A368396 Prime numbers in Narayana's cows sequence A000930.
%C A368396 The next terms are too large to show here: a(10) and a(11) have 1036 and 4274 digits, respectively (see A170954). - _Jon E. Schoenfield_, Dec 29 2023
%F A368396 a(n) = A000930(A170954(n)).
%F A368396 A000040 INTERSECT A000930.
%t A368396 a[0] = 1; a[1] = a[2] = 1; a[n_] := a[n] = a[n-1] + a[n-3]; Select[Table[a[n], {n, 0, 400}], PrimeQ]
%Y A368396 Primes in A000930.
%Y A368396 Cf. A000040, A170954.
%K A368396 nonn
%O A368396 1,1
%A A368396 _José E. Solsona_, Dec 22 2023