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Words of length n over the alphabet {0,...,n-1} that are 1324-avoiding.
0

%I #14 Jul 10 2015 18:03:31

%S 1,1,4,27,255,3028,41979,647826,10807287,191374095,3554481788

%N Words of length n over the alphabet {0,...,n-1} that are 1324-avoiding.

%Y The permutation analog is A061552.

%Y Cf. A000312.

%K nonn,hard,more

%O 0,3

%A _Chad Brewbaker_, Mar 14 2014

%E a(8)-a(10) from _Giovanni Resta_, Mar 14 2014