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 A136295 #11 Aug 19 2021 11:37:43 %S A136295 1671800,2637800,3117300,3933600,4640600,4652400,5178200,5518700, %T A136295 5837400,5845200,6012900,6085000,6333800,6376200,6789800,6958700, %U A136295 7129900,7565200,7803500,7826900,8027700,8367400,8421300,8905200 %N A136295 Multiples of 100 which begin a span of 100 composite numbers. %C A136295 As numbers become large, the proportion of centuries with no primes increases according to the prime number theorem. %D A136295 J. W. L. Glaisher, Factor table for the sixth million : containing the least factor of every number not divisible by 2,3, or 5 between 5,000,000 and 6,000,000; Taylor and Francis, 1883 %D A136295 J. Murray, Report of the Annual Meeting, British Association for the Advancement of Science, Vol. 50 (1881), p. 308. %H A136295 Charles R Greathouse IV, <a href="/A136295/b136295.txt">Table of n, a(n) for n = 1..10000</a> %F A136295 a(n) ~ n. [_Charles R Greathouse IV_, Aug 21 2011] %e A136295 a(2) = 2637800 because there is a prime gap of 112 from 2637799 to 2637911, which makes the century from 2637800 to 2637899 the second one consisting wholly of composite numbers. %t A136295 100SequencePosition[PrimePi[100Range[90000]],{x_,x_}][[All,1]] (* _Harvey P. Dale_, Aug 19 2021 *) %Y A136295 Cf. A091089, A002386. %K A136295 nonn %O A136295 1,1 %A A136295 Julien Peter Benney (jpbenney(AT)gmail.com), Mar 21 2008 %E A136295 Definition clarified by _Don Reble_, Sep 06 2008