OFFSET
1,2
REFERENCES
M. E. Mays, A worst case of the Fibonacci-Sylvester expansion, J. Combin. Math. Combin. Computing, 1 (1987), 141-148.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..10
MAPLE
a:= proc(n) a(n):= `if`(n=1, 1, a(n-1)*n^(2^(n-1))) end:
seq(a(n), n=1..7); # Alois P. Heinz, May 25 2013
MATHEMATICA
Table[Product[k^(2^(k - 1)), {k, 1, n}], {n, 1, 10}] (* Soumadeep Ghosh, Feb 15 2016 *)
PROG
(PARI) a(n) = prod(k=1, n, k^(2^(k-1))) \\ Michel Marcus, May 25 2013
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved