cp's OEIS Frontend

A213865 Number of words w where each letter of the n-ary alphabet occurs 5 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.

%I A213865 #4 Jun 24 2012 12:57:48
%S A213865 1,1,56,13326,7364321,7236515981,10915151070941,23060727168393236,
%T A213865 64157120593526429971,224909472938181653263446,
%U A213865 961415357313559098150122721,4886376056824611061263607492146,28944590736206982153001156958037271,196631118571992127875305845382720388771
%N A213865 Number of words w where each letter of the n-ary alphabet occurs 5 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 A213865 a(0) = 1: the empty word.
%e A213865 a(1) = 1: aaaaa.
%e A213865 a(2) = 56: aaaaabbbbb, aaaababbbb, ..., baababaabb, baabababab.
%Y A213865 Row n=5 of A213275.
%K A213865 nonn
%O A213865 0,3
%A A213865 _Alois P. Heinz_, Jun 23 2012