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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A127918 Half of product of three numbers: n-th prime, previous and following number. 8
3, 12, 60, 168, 660, 1092, 2448, 3420, 6072, 12180, 14880, 25308, 34440, 39732, 51888, 74412, 102660, 113460, 150348, 178920, 194472, 246480, 285852, 352440, 456288, 515100, 546312, 612468, 647460, 721392, 1024128, 1123980, 1285608 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Apart from the first term, the same as A117762. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 14 2008

MATHEMATICA

Table[(Prime[n] + 1) Prime[n](Prime[n] - 1)/2, {n, 1, 100}]

PROG

(PARI) forprime(p=2, 1e3, print1(3*binomial(p+1, 3)", ")) \\ Charles R Greathouse IV, Jun 16 2011

CROSSREFS

Cf. A036689, A034953, A127917.

Sequence in context: A065080 A114419 A090830 * A069944 A073996 A003483

Adjacent sequences:  A127915 A127916 A127917 * A127919 A127920 A127921

KEYWORD

nonn,easy

AUTHOR

Artur Jasinski (grafix(AT)csl.pl), Feb 06 2007

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 17 03:37 EST 2012. Contains 205978 sequences.