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 A249868 #11 Nov 25 2014 06:10:11 %S A249868 1,2,2,4,2,4,2,4,6,2,1,2,2,4,2,4,2,4,6,2,32,1,2,2,4,2,4,2,4,6,2,32,1, %T A249868 2,2,4,2,4,2,4,6,2,94,1,2,2,4,2,4,2,4,6,65 %N A249868 Number of days between prime dates in a leap year; starting with Feb 2 and ending with Feb 2 in the following year. %C A249868 A prime date means that the number of the day of the month and the number for the month are both prime. %C A249868 The 53 prime dates in a leap year are: %C A249868 Feb 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 %C A249868 Mar 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, %C A249868 May 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, %C A249868 Jul 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, %C A249868 Nov 2, 3, 5, 7, 11, 13, 17, 19, 23, 29. %C A249868 There are 53 entries in this sequence because the 65 days between Nov 29 and Feb 2 in the following year have also been taken into account. %C A249868 In A249867 the entry a(9) = 7 is replaced by 6, 2. %Y A249868 Cf. A249867. %K A249868 nonn,fini,full %O A249868 1,2 %A A249868 _Wolfdieter Lang_, Nov 23 2014