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A092258
(2^n-1)^(2^n).
2
0, 1, 81, 5764801, 6568408355712890625, 529144398052420314716929933900838757437386767361
OFFSET
0,3
COMMENTS
Number of maps from {0,1}^n to itself with no roots.
REFERENCES
F. Robert, Discrete Iterations, Springer-Verlag, 1986, p. 167.
MATHEMATICA
(#-1)^#&/@(2^Range[0, 5]) (* Harvey P. Dale, Feb 18 2024 *)
CROSSREFS
Sequence in context: A319979 A293149 A013851 * A277842 A277843 A277844
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Feb 19 2004
STATUS
approved