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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A052225 (n+1)!*(n+3)-3. 0
5, 27, 141, 837, 5757, 45357, 403197, 3991677, 43545597, 518918397, 6706022397, 93405311997, 1394852659197, 22230464255997, 376610217983997, 6758061133823997, 128047474114559997, 2554547108585471997 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..18.

FORMULA

a(n) = A001048(n+2) - 3. - Michel Marcus, Jun 19 2013

EXAMPLE

a(2)=27 because 27=(2+1)!*(2+3)-3 or 3*2*1*5-3.

PROG

(PARI) a(n) = (n+1)!*(n+3) - 3 \\ Michel Marcus, Jun 19 2013

CROSSREFS

Sequence in context: A037675 A221673 A257061 * A293295 A015535 A026292

Adjacent sequences:  A052222 A052223 A052224 * A052226 A052227 A052228

KEYWORD

nonn,easy

AUTHOR

Andreas Ulvaer (aulvaer(AT)yahoo.com), Feb 20 2000

EXTENSIONS

More terms from James A. Sellers, Feb 22 2000

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 November 16 02:33 EST 2018. Contains 317252 sequences. (Running on oeis4.)