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 A057589 #20 Jun 07 2022 11:13:10 %S A057589 1,3,13,21,1597,6765,75025 %N A057589 Numbers n which are both lucky (A000959) and Fibonacci (A000045). %C A057589 Next term > 7*10^9. - _Sascha Kurz_, Mar 25 2002 %C A057589 a(8) >= 12586269025. - _Kevin P. Thompson_, Nov 24 2021 %e A057589 a(6) = 6765 since it is the sixth number that is both lucky [A000959(797) = 6765] and Fibonacci [A000045(20) = 6765]. %Y A057589 Cf. A000045, A000959. %K A057589 nonn,more %O A057589 1,2 %A A057589 _Naohiro Nomoto_, Oct 05 2000