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 A111331 #11 Jun 01 2024 06:21:55 %S A111331 2,3,5,89,514229,433494437,2971215073, %T A111331 3061719992484545030554313848083717208111285432353738497131674799321571238149015933442805665949 %N A111331 Prime Fibonacci numbers whose digits in base 10 sum up to a prime. %C A111331 Fibonacci(104911) is the next (probable) prime whose digits sum to a prime. Thus the next term would be 21925 digits long. - _Hans Havermann_, Nov 06 2005 %e A111331 514229 is a prime Fibonacci number and the sum of the digits 5 + 1 + 4 + 2 + 2 + 9 = 23 is also a prime. %t A111331 Select[Fibonacci[Range[1000]],PrimeQ[#]&&PrimeQ[Total[IntegerDigits[#]]]&] (* _James C. McMahon_, May 31 2024 *) %Y A111331 Cf. A065398, A051694, A051694, A067515. %K A111331 base,hard,nonn %O A111331 1,1 %A A111331 _Stefan Steinerberger_, Nov 05 2005