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 A242324 #6 May 10 2014 23:33:16
%S A242324 1,2,3,5,7,8,11,13,14,15,18,39,42,46,128,319,501,645,749,785,924,1786,
%T A242324 1810,3032,3053,3913,4444,5611,6290,20526,20850,23431,44281,45981,
%U A242324 103816,133938
%N A242324 Indices of primes in the tribonacci-like sequence A214827.
%C A242324 a(37) > 2*10^5.
%H A242324 Tony D. Noe and Jonathan Vos Post, <a href="http://www.cs.uwaterloo.ca/journals/JIS/VOL8/Noe/noe5.html">Primes in Fibonacci n-step and Lucas n-step Sequences</a>, J. of Integer Sequences, Vol. 8 (2005), Article 05.4.4
%t A242324 a={1,5,5}; Print[1];Print[2]; For[n=3, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], Print[n]]; a=RotateLeft[a]; a[[3]]=sum]
%Y A242324 Cf. A001590, A100683, A231574, A231575, A232542, A214899, A230607, A020992, A232498, A214727, A081172, A214752, A141523,A214825, A235862, A214827.
%K A242324 nonn,more
%O A242324 1,2
%A A242324 _Robert Price_, May 10 2014