A161376 - OEIS

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A161376

Number of letters in Spanish words for months of the year.

5, 7, 5, 5, 4, 5, 5, 6, 10, 7, 9, 9, 5, 7, 5, 5, 4, 5, 5, 6, 10, 7, 9, 9, 5, 7, 5, 5, 4, 5, 5, 6, 10, 7, 9, 9, 5, 7, 5, 5, 4, 5, 5, 6, 10, 7, 9, 9, 5, 7, 5, 5, 4, 5, 5, 6, 10, 7, 9, 9, 5, 7, 5, 5, 4, 5, 5, 6, 10, 7, 9, 9, 5, 7, 5, 5, 4, 5, 5, 6, 10, 7, 9, 9

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Enero = 5 letters; Febrero = 7; Marzo = 5; Abril = 5; Mayo = 4; Junio = 5; Julio = 5; Agosto = 6; Septiembre = 10; Octubre = 7; Noviembre = 9; Diciembre = 9.

Period 12: repeat [5, 7, 5, 5, 4, 5, 5, 6, 10, 7, 9, 9].

LINKS

Table of n, a(n) for n=1..84.

Index entries for sequences related to calendars.

Index to 12-periodic sequences.

Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,0,0,0,1).

FORMULA

From Elmo R. Oliveira, Jul 18 2024: (Start)

G.f.: x*(5 + 7*x + 5*x^2 + 5*x^3 + 4*x^4 + 5*x^5 + 5*x^6 + 6*x^7 + 10*x^8 + 7*x^9 + 9*x^10 + 9*x^11)/(1 - x^12).

a(n) = a(n-12) for n > 12. (End)

CROSSREFS

Cf. A031139, A182495.