login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A032770 Integer quotients of n(n + 1)(n + 2)(n + 3)(n + 4) / (n+(n+1)+(n+2)+(n+3)+(n+4)). 2
0, 8, 36, 224, 432, 756, 1232, 2808, 4004, 5544, 7488, 12852, 16416, 20672, 25704, 38456, 46368, 55440, 65780, 90720, 105560, 122148, 140616, 183744, 208692, 236096, 266112, 334628, 373464, 415584, 461168, 563472, 620576, 681912, 747684 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
Sequence contains all numbers of form i(5i+c)(5i+d)(5i+e), with <c,d,e> from {<1,3,4>, <-1,-3,-4>, <-1,2,3>, <1,-2,-3>}. - Ralf Stephan, May 16 2005
LINKS
MATHEMATICA
Select[Times@@(Range[0, 4]+#)/Total[Range[0, 4]+#]&/@ Range[0, 60], IntegerQ] (* Harvey P. Dale, Mar 17 2011 *)
CROSSREFS
Sequence in context: A290357 A030112 A001555 * A032794 A000757 A126756
KEYWORD
nonn
AUTHOR
Patrick De Geest, May 15 1998
STATUS
approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)