A114485 Number of decimal digits in !(10^n), where !x is the subfactorial.

7, 158, 2568, 35660, 456574, 5565709, 65657059, 756570556, 8565705523, 95657055186, 1056570551816, 11565705518103, 125657055180974, 1356570551809682, 14565705518096756, 155657055180967490

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

Cf. A000166, A061010.

Sequence in context: A197766 A009703 A014385 * A061010 A153714 A153713

Adjacent sequences: A114482 A114483 A114484 * A114486 A114487 A114488

Keyword

nonn,base

Author

Eric W. Weisstein, Nov 30 2005

Extensions

More terms from Carl R. White, Jun 30 2012

Status

approved