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%I #6 Mar 02 2016 21:16:11
%S 1,362879,12498099730471,1072323973643442736211,
%T 135383475007869462606521105767,
%U 20584293980310480336378076914369061769,3413618982844502796240740610191874586048936771,586566986371155102435901052470650279895779757665905993
%N Number of sequences with n copies each of 1,2,...,9 avoiding the pattern 12...9.
%H Alois P. Heinz, <a href="/A269127/b269127.txt">Table of n, a(n) for n = 0..50</a>
%F a(n) = A071551(n) - A268845(n).
%Y Row n=9 of A269129.
%Y Cf. A071551, A268845.
%K nonn
%O 0,2
%A _Alois P. Heinz_, Feb 19 2016