login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A106793 Number of words (over an alphabet of size 26) of length n with all different letters. 0
1, 26, 650, 15600, 358800, 7893600, 165765600, 3315312000, 62990928000, 1133836704000, 19275223968000, 308403583488000, 4626053752320000, 64764752532480000, 841941782922240000, 10103301395066880000 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

a(n) = 26! / (26 - n)!

EXAMPLE

a(2) = 650 because 26! / 24! = 650

CROSSREFS

Cf. A106710.

Sequence in context: A203598 A057010 A014913 * A162812 A163177 A163526

Adjacent sequences:  A106790 A106791 A106792 * A106794 A106795 A106796

KEYWORD

nonn,fini

AUTHOR

Luca Colucci (lcolucci(AT)caridata.it), May 17 2005

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 14 11:36 EST 2012. Contains 205623 sequences.