%I #6 Mar 02 2016 21:07:59

%S 0,0,1,15168751,1020149742404727,285867869484243410805931,

%T 276745258345325814650980975177139,

%U 789007694236868030155290867470985247486401,5841526335200139692050292842849347521755651331941759,101741646114927245552012617872560516024563394870390766150081895

%N Number of sequences with 8 copies each of 1,2,...,n avoiding the pattern 12...n.

%H Alois P. Heinz, <a href="/A269118/b269118.txt">Table of n, a(n) for n = 0..70</a>

%F a(n) = A172609(n) - A268851(n).

%Y Column k=8 of A269129.

%Y Cf. A172609, A268851.

%K nonn

%O 0,4

%A _Alois P. Heinz_, Feb 19 2016