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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A109587 a(n)=[prime(n+2)-2*prime(n+1)-prime(n)]^(n+1), where prime(k) is the k-th prime. 0
9, -216, 4096, -1048576, 64000000, -13492928512, 1099511627776, -101559956668416, 97656250000000000, -11384956040305711104, 4722366482869645213696, -2822127947962858105470976, 439804651110400000000000000, -73145782610367634657744257024 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(2)=-216 because (7-2*5-3)^3=(-6)^3=-216.

MAPLE

a:=n->(ithprime(n+2)-2*ithprime(n+1)-ithprime(n))^(n+1): seq(a(n), n=1..14);

MATHEMATICA

a = Table[Abs[(Prime[n + 2] - 2*Prime[n + 1] - Prime[n])^PrimePi[Prime[n + 1]]], {n, 1, 25}]

CROSSREFS

Sequence in context: A001535 A122399 A188409 * A067426 A007108 A007107

Adjacent sequences:  A109584 A109585 A109586 * A109588 A109589 A109590

KEYWORD

sign

AUTHOR

Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jun 29 2005

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 15 18:22 EST 2012. Contains 205835 sequences.