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Product k^(2^(k-2)), k = 2..n.
(Formerly M2111)
0

%I M2111 #11 Mar 30 2012 16:44:56

%S 1,2,18,4608,1800000000,5077997833420800000000,

%T 5608281336980602120684110607059901336780800000000

%N Product k^(2^(k-2)), k = 2..n.

%D M. E. Mays, A worst case of the Fibonacci-Sylvester expansion, J. Combin. Math. Combin. Computing, 1 (1987), 141-148.

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

%K nonn,easy

%O 1,2

%A _N. J. A. Sloane_.