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 A375862 #21 Sep 23 2024 11:33:57
%S A375862 1,9192631770,551557906200,33093474372000,794243384928000,
%T A375862 5559703694496000,24174783028746000,290097396344952000,
%U A375862 2900973963449520000,29009739634495200000,290097396344952000000,290097396344952000000000000
%N A375862 Number of caesium clock "ticks" in time units: tick, second, minute, hour, day, week, month, year, decade, century, millennium, eon (in Julian years).
%C A375862 The standard SI second has been defined since 1968 as 9192631770 (A230458) transitions ("ticks") of the caesium-133 atom.
%C A375862 The values of a(7) to a(12) are based on the average Julian calendar year of 365.25 days, which appears frequently in astronomical publications, where it is usually called simply "Julian years".
%H A375862 Wikipedia, <a href="http://en.wikipedia.org/wiki/Atomic_clock">Atomic clock</a>.
%F A375862 a(n) = A375666(n-1) * 9192631770, n>1.
%Y A375862 Cf. A053401, A375666 (similar sequences based on units of seconds).
%Y A375862 Cf. A213612, A213613, A213614 (use seconds in year).
%Y A375862 Cf. A230458 (value of a(2)).
%K A375862 easy,fini,nonn,full
%O A375862 1,2
%A A375862 _Robert B Fowler_, Aug 31 2024