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 A023182 #9 Apr 11 2022 12:13:49 %S A023182 1,2,3,11,21,22,92,121,133,209,319,341,451,493,649,671,781,869,979, %T A023182 1111,1131,1199,1419,1441,1529,1639,1661,1969,1991,2101,2189,2321, %U A023182 2519,2629,2651,2761,2773,2959,2981,3091,3421,3641,3839,3949,4169,4279,4411,4499 %N A023182 Numbers k such that Fibonacci(k) == 89 (mod k). %Y A023182 Cf. A000045. %K A023182 nonn %O A023182 1,2 %A A023182 _David W. Wilson_