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%I #9 Feb 25 2021 21:28:01
%S 20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,5,20,20,20,20,
%T 20,20,20,20,20,20,20,20,20,20,20,20,20,20,5,20,20,20,20,20,20,20,20,
%U 20,20,20,20,20,20,20,20,20,20,5
%N Number of days in months in the Haab year of Mayan/Mesoamerican calendars.
%H C. Tondering, <a href="http://www.tondering.dk/claus/calendar.html">The Calendar FAQ</a>
%H <a href="/index/Ca#calendar">Index entries for sequences related to calendars</a>
%F G.f. 20/(1-x)-15*x^19/(1-x^19).
%Y Cf. A081244.
%K nonn
%O 1,1
%A _Ralf Stephan_, Mar 12 2003
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