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 A213184 #19 Feb 12 2015 04:04:40 %S A213184 10100,10101,10102,10103,10104,10105,10106,10107,10108,10109,10110, %T A213184 10111,10112,10113,10114,10115,10116,10117,10118,10119,10120,10121, %U A213184 10122,10123,10124,10125,10126,10127,10128,10129,10130,10131,10132,10133,10134,10135,10136,10137,10138,10139,10140 %N A213184 Numbers which may represent a date in "condensed American notation" MMDDYY. %C A213184 The "may" in the definition should clarify that, e.g., 22900 is in the sequence since it may represent a date (Feb. 29), but not necessarily in any century (e.g., in 2000 but not in 1900), but 22900+k is present only for k=0 (mod 4). %C A213184 The sequence is finite, with 366*25 + 365*75 terms, cf. comment from G. Resta in A213182. The largest term is a(36525)=123199. %e A213184 a(1)=10100 represents, e.g., Jan 01 1900 (or Jan 01 2000). %e A213184 a(100)=10199 (for Jan 01 1999) is followed by a(101)=10200 (for Jan 02 2000). %e A213184 a(3100)=13199 (for Jan 31 1999) is followed by a(3101)=20100 (for Feb 01 2000). %Y A213184 Cf. A213182, A106605, A107273, A107275; A210883, A210884, A210885. %K A213184 nonn,base,fini %O A213184 1,1 %A A213184 _M. F. Hasler_, Feb 28 2013