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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A033187 (n!)!/n!. 0
1, 1, 1, 120, 25852016738884976640000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

The next two terms have 197 and 1744 decimal digits, respectively.

a(n) gives the number of different ways in which a table of permutations for n objects can be arranged when one of them is fixed at the same place. Also: some of the first terms in this sequence belong to A010050. - R. J. Cano, Jan 23 2013

LINKS

Table of n, a(n) for n=0..4.

Index to divisibility sequences

Index entries for sequences related to factorial numbers

FORMULA

a(n)=(n!-1)!

a(n)=a000197(n)/n!

PROG

(PARI) a(n)=(n!-1)! \\- R. J. Cano, Jan 23 2013

CROSSREFS

Cf. A000197, A010050.

Sequence in context: A268506 A172730 A045509 * A106547 A106544 A079842

Adjacent sequences:  A033184 A033185 A033186 * A033188 A033189 A033190

KEYWORD

nonn,easy

AUTHOR

Ken Alverson (KenA(AT)tso.cin.ix.ne)

EXTENSIONS

Corrections made by Eric M. Schmidt, Jan 23 2013

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy .

Last modified February 22 07:53 EST 2018. Contains 299447 sequences. (Running on oeis4.)