The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A213872 Number of words w where each letter of the 10-ary alphabet occurs n times and for every prefix z of w we have #(z,a_i) = 0 or #(z,a_i) >= #(z,a_j) for all j>i and #(z,a_i) counts the occurrences of the i-th letter in z. 1

%I #4 Jun 25 2012 14:19:33

%S 1,3628800,654729075,89575852312675,140633739174235040170,

%T 961415357313559098150122721,18131599140232990157442722880124741,

%U 725168149513389307543056971716033431701831,51960277212541922189750307005207837858451630919380

%N Number of words w where each letter of the 10-ary alphabet occurs n times and for every prefix z of w we have #(z,a_i) = 0 or #(z,a_i) >= #(z,a_j) for all j>i and #(z,a_i) counts the occurrences of the i-th letter in z.

%e a(0) = 1: the empty word.

%e a(1) = 3628800: all permutations of 10 letters.

%Y Column k=10 of A213275.

%K nonn

%O 0,2

%A _Alois P. Heinz_, Jun 23 2012

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified May 27 16:57 EDT 2024. Contains 372880 sequences. (Running on oeis4.)