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 A186509 #29 Mar 22 2024 03:47:57 %S A186509 4,14,7837,27049,144997771,651186838,12779564974,22369949923, %T A186509 149621468452,225012717952,240728320642,586832463472,766964610742, %U A186509 939742446571,949543082647,1908189311558,2693729868901,2701032171244,3465208973035,3489960850720,3910908182851 %N A186509 Numbers k such that there are 17 primes between 100*k and 100*k + 99. %C A186509 There are 2829786 possible prime patterns for centuries having 17 primes. - _Tim Johannes Ohrtmann_, Aug 27 2015 %H A186509 Brian Kehrig, <a href="/A186509/b186509.txt">Table of n, a(n) for n = 1..365</a> %e A186509 4 is in this sequence because there are 17 primes between 400 and 499 (401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491 and 499). %Y A186509 Cf. A038822 (number of primes between 100n and 100n+99), A186311 (first occurrences). %Y A186509 Cf. A181098 (no primes), A186393-A186408 (1 to 16 primes), A361723 (18 primes). %K A186509 nonn %O A186509 1,1 %A A186509 _T. D. Noe_, Feb 22 2011 %E A186509 a(7)-a(15) from _Donovan Johnson_, Feb 28 2011 %E A186509 Terms a(16) and beyond from _Brian Kehrig_, Mar 21 2023