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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

Table of n, a(n) for n=1..57.

C. Tondering, The Calendar FAQ

Index entries for sequences related to calendars

FORMULA

G.f. 20/(1-x)-15*x^19/(1-x^19).

CROSSREFS

Cf. A081244.

Sequence in context: A217517 A332561 A278831 * A010859 A291522 A303642

Adjacent sequences:  A081242 A081243 A081244 * A081246 A081247 A081248

KEYWORD

nonn,changed

AUTHOR

Ralf Stephan, Mar 12 2003

STATUS

approved

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Last modified February 27 11:38 EST 2021. Contains 341656 sequences. (Running on oeis4.)