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 A153889 #5 Jun 22 2021 16:32:05
%S A153889 1,3,5,21,233,377,6765,317811,514229,2178309,53316291173,
%T A153889 10610209857723,23416728348467685,259695496911122585,
%U A153889 7540113804746346429,36726740705505779255899443,251728825683549488150424261,37281903592600898879479448409585328515842582885579275203077366912825
%N A153889 Middle of five consecutive Fibonacci numbers such that sum of five consecutive Fibonacci numbers is prime number.
%C A153889 0+1+1+2=3=7, 1+2+3+5+8=19, 2+3+5+8=13=31, 8+13+21+34+55=131, 89+144+233+377+610=1453, 144+233+377+610+987=2351,...
%t A153889 a=0;b=1;c=1;d=2;lst={};Do[e=Fibonacci[n];p=a+b+c+d+e;If[PrimeQ[p],AppendTo[lst,c]];a=b;b=c;c=d;d=e,{n,4,6!}];lst
%Y A153889 Cf. A000045, A001906, A000071, A001605, A153862, A153863, A153865, A153866, A153867, A153887, A153888.
%K A153889 nonn
%O A153889 1,2
%A A153889 _Vladimir Joseph Stephan Orlovsky_, Jan 03 2009