OFFSET
1,2
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
a(12) = 12*21 = 252.
MATHEMATICA
Table[Times@@Union[FromDigits/@Permutations[IntegerDigits[n]]], {n, 60}] (* Harvey P. Dale, Apr 06 2023 *)
CROSSREFS
KEYWORD
nonn,easy,base
AUTHOR
N. J. A. Sloane, May 30 2001
EXTENSIONS
More terms from Larry Reeves (larryr(AT)acm.org), May 30 2001
STATUS
approved