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%I #14 Jul 12 2018 08:08:24
%S 0,0,4,12,16,32,64,128,384,704,896,2304,4608,7680,16384,36864,65536,
%T 143360,303104,565248,1245184,2473984,4521984,9961472,19070976,
%U 35389440,78643200,154664960,289931264,635437056,1309671424,2503999488,5280628736
%N Consider the Watanabe tag system defined in A291067; a(n) = number of binary words of length n which terminate in a cycle.
%H Don Reble, <a href="/A291781/b291781.txt">Table of n, a(n) for n = 1..60</a>
%Y Cf. A284116, A291067, A291780.
%K nonn
%O 1,3
%A _Don Reble_ and _N. J. A. Sloane_, Sep 01 2017
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