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A066358
Recurring permutations: a(n) = P(a(n-1),a(n-2)) where P(x,y) = x!/(x-y)!.
0
1, 3, 3, 6, 120, 2629976731200
OFFSET
0,2
CROSSREFS
Sequence in context: A221925 A221688 A366820 * A261295 A118031 A335726
KEYWORD
easy,nonn
AUTHOR
Floor van Lamoen, Dec 20 2001
STATUS
approved