OFFSET
1,6
REFERENCES
Dave Wells, The Penguin Dictionary of Curious and Interesting Numbers (Revised Edition), Penguin Books, ISBN 0-14-02.6149-4, 1998, page 39.
MATHEMATICA
Do[If[Mod[(n-1)!/n]==0, Print[(n-1)!/n, Print[0]], {n, 1, 30}]
Table[If[Divisible[(n-1)!, n], (n-1)!/n, 0], {n, 30}] (* Harvey P. Dale, May 04 2018 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Jun 07 2000
STATUS
approved