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A162187
a(0)=4 and a(n+1)=a(n)!
0
4, 24, 620448401733239439360000
OFFSET
0,1
COMMENTS
Initializing at 0, 1 or 2 gives constant sequences (except for the first term when initializing at 0).
Initializing at 3 gives 3,6,720,720!,...
CROSSREFS
Cf. A000142 (factorials).
Sequence in context: A077092 A092435 A058230 * A103644 A185070 A272680
KEYWORD
bref,nonn
AUTHOR
Benoit Jubin, Jun 27 2009
STATUS
approved