OFFSET
1,1
COMMENTS
Entries where the number of digits of the subfactorial (here) is one less than the number of digits of the factorial (A061010) are indicated by A214004. [Carl R. White, Jun 30 2012]
LINKS
Carl R. White, Table of n, a(n) for n = 1..200
Eric Weisstein's World of Mathematics, Subfactorial
FORMULA
a(n) = 10^n*(n - 1/log(10)) + n/2 + O(1). [Arkadiusz Wesolowski, Jan 20 2012]
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Eric W. Weisstein, Nov 30 2005
EXTENSIONS
More terms from Carl R. White, Jun 30 2012
STATUS
approved