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 A213612 #9 Jul 22 2025 23:03:03 %S A213612 3,1,5,5,7,6,0,0 %N A213612 Decimal expansion of the duration of the Julian year in SI seconds. %C A213612 This is an assigned metrological constant. Regarding these, see A003678 for general context notes, references and links. - Stanislav Sykora, Jun 16 2012. %C A213612 Together with the speed of light (A003678) it defines the distance of one light-year (A213614). %C A213612 Julian year continues to be preferred to Gregorian year in astronomy. %F A213612 365.25 * 24 * 60 * 60 %e A213612 Exactly 365.25 days, or 3.15576*10^7 seconds %Y A213612 Other assigned constants: A003678, A182999, A081799, A019694, A213610, A072915, A213611, A213613, A213614. %K A213612 nonn,cons,full,fini %O A213612 8,1 %A A213612 _Stanislav Sykora_, Jun 16 2012