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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A030003 (prime(n)-3)(prime(n)-5)(prime(n)-7)/48. 1
0, 0, 0, 4, 10, 35, 56, 120, 286, 364, 680, 969, 1140, 1540, 2300, 3276, 3654, 4960, 5984, 6545, 8436, 9880, 12341, 16215, 18424, 19600, 22100, 23426, 26235, 37820, 41664, 47905, 50116, 62196, 64824, 73150, 82160, 88560, 98770, 109736, 113564, 134044, 138415 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,4

COMMENTS

It appears that a(n) is a subset of binomial(f(n),3) where f(n)=floor((3*n-7)/3). - Gary Detlefs, Apr 14 2012

LINKS

T. D. Noe, Table of n, a(n) for n = 2..1000

MATHEMATICA

Table[(p - 3) (p - 5) (p - 7)/48, {p, Prime[Range[2, 50]]}] (* T. D. Noe, Apr 16 2012 *)

CROSSREFS

Sequence in context: A149174 A283070 A222631 * A234009 A198324 A149175

Adjacent sequences:  A030000 A030001 A030002 * A030004 A030005 A030006

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 17 02:10 EDT 2019. Contains 325092 sequences. (Running on oeis4.)