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A291781
Consider the Watanabe tag system defined in A291067; a(n) = number of binary words of length n which terminate in a cycle.
9
0, 0, 4, 12, 16, 32, 64, 128, 384, 704, 896, 2304, 4608, 7680, 16384, 36864, 65536, 143360, 303104, 565248, 1245184, 2473984, 4521984, 9961472, 19070976, 35389440, 78643200, 154664960, 289931264, 635437056, 1309671424, 2503999488, 5280628736
OFFSET
1,3
CROSSREFS
KEYWORD
nonn
AUTHOR
Don Reble and N. J. A. Sloane, Sep 01 2017
STATUS
approved