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A006948 Zero-entropy permutations of length n.
(Formerly M1255)

%I M1255

%S 1,2,4,12,30,90,244,776,2218,6946,20468

%N Zero-entropy permutations of length n.

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H A. Blokh, E. Coven, L. Block, <a href="http://people.cas.uab.edu/~ablokh/zeren1.pdf">Zero Entropy Permutations</a>, International Journal of Bifurcation and Chaos 5 (1995), 1331-1337

%K nonn,more

%O 1,2

%A Ethan Coven (ecoven(AT)wesleyan.edu)

%E a(6) corrected and a(7)-a(11) from _Sean A. Irvine_, Sep 27 2017

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Last modified March 28 11:00 EDT 2020. Contains 333083 sequences. (Running on oeis4.)