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 A371508 #16 Jan 08 2025 05:54:34 %S A371508 1,2,81,311,6887,9691,296959 %N A371508 Integers k such that A000045(k) + A004091(k) is prime (A000040). %e A371508 1 is a term since Fibonacci(1) = 1 plus its reversal is 1 + 1 = 2 which is prime (and for the same reason 2 is a term). %e A371508 81 is a term since Fibonacci(81) = 37889062373143906 plus its reversal is 98823199699242779 which is prime. %t A371508 Select[Range[10^4], PrimeQ[(f = Fibonacci[#]) + IntegerReverse[f]] &] (* _Amiram Eldar_, Mar 25 2024 *) %Y A371508 Cf. A000040, A000045, A004091, A072366. %K A371508 nonn,base,more %O A371508 1,2 %A A371508 _Gonzalo MartÃnez_, Mar 25 2024 %E A371508 a(7) from _Michael S. Branicky_, Jan 07 2025