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A291780
Consider the Watanabe tag system defined in A291067; a(n) = number of binary words of length n which terminate at the empty word.
9
2, 4, 4, 4, 16, 32, 64, 128, 128, 320, 1152, 1792, 3584, 8704, 16384, 28672, 65536, 118784, 221184, 483328, 851968, 1720320, 3866624, 6815744, 14483456, 31719424, 55574528, 113770496, 246939648, 438304768, 837812224, 1790967808, 3309305856
OFFSET
1,1
CROSSREFS
KEYWORD
nonn
AUTHOR
Don Reble and N. J. A. Sloane, Sep 01 2017
STATUS
approved