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 A377470 #11 Jan 15 2025 08:33:45 %S A377470 5,3,2,13,89,73,557,503,43,337,313,269,239,23,211,1861,167,163,149, %T A377470 139,1361,1259,1193,1117,103,983,97,929,911,881,787,761,727,719,67, %U A377470 659,6337,61,5953,577,557,5501,521,5167,5051,5003,4721,4481,439,4349,4283,4177 %N A377470 For any prime p, sequence gives the least prime q such that decimal part of 1/q starts with p, leading zeros excluded. %C A377470 If A099406(n) is prime than a(n) = A099406(n), otherwise a(n) > A099406(n). - _Michel Marcus_, Jan 08 2025 %e A377470 p = 13 -> q = 73 because 1/73 = 0.01369863… %e A377470 p = 83 -> q = 1193 because 1/1193 = 0,0008382229… %Y A377470 Cf. A099406. %K A377470 nonn,easy,base %O A377470 1,1 %A A377470 _Paolo P. Lava_, Jan 08 2025