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A081245 Number of days in months in the Haab year of Mayan/Mesoamerican calendars. 1
20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 5, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 5, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
C. Tondering, The Calendar FAQ
FORMULA
G.f. 20/(1-x)-15*x^19/(1-x^19).
CROSSREFS
Cf. A081244.
Sequence in context: A217517 A332561 A278831 * A010859 A291522 A303642
KEYWORD
nonn
AUTHOR
Ralf Stephan, Mar 12 2003
STATUS
approved

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Last modified June 19 17:11 EDT 2024. Contains 373504 sequences. (Running on oeis4.)