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A161376 Number of letters in Spanish words for months of the year. 3

%I

%S 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,

%T 7,9,9

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

%C 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.

%C Period 12.

%H <a href="/index/Ca#calendar">Index entries for sequences related to calendars</a>

%H <a href="/index/Periodic#12">Index to 12-periodic sequences</a>

%F a(n) = (1/72)*(31*(n mod 12) + 7*((n+1) mod 12) - 5*((n+2) mod 12) + 25*((n+3) mod 12) - 17*((n+4) mod 12) + ((n+5) mod 12) + 7*((n+6) mod 12) + ((n+7) mod 12) + 13*((n+8) mod 12) + 7*((n+9) mod 12) + 19*((n+10) mod 12) - 5*((n+11) mod 12)), with n >= 0. - _Paolo P. Lava_, Jun 17 2009

%Y Cf. A031139.

%K nonn,word

%O 1,1

%A _Claudio Meller_, Jun 08 2009

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Last modified June 15 17:43 EDT 2019. Contains 324142 sequences. (Running on oeis4.)