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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A107471 3*prime(n) - 2*prime(n+1). 0
0, -1, 1, -1, 7, 5, 13, 11, 11, 25, 19, 29, 37, 35, 35, 41, 55, 49, 59, 67, 61, 71, 71, 73, 89, 97, 95, 103, 101, 85, 119, 119, 133, 119, 145, 139, 145, 155, 155, 161, 175, 161, 187, 185, 193, 175, 187, 215, 223, 221, 221, 235, 221, 239, 245, 251, 265, 259, 269, 277, 263, 265, 299, 307, 305, 289, 319, 317, 343, 341, 341 (list; graph; refs; listen; history; internal format)
OFFSET

1,5

EXAMPLE

a(5)=7 because prime(5)=11, prime(6)=13 and 3*11-2*13=7.

MAPLE

a:=n->3*ithprime(n)-2*ithprime(n+1): seq(a(n), n=1..80); (Deutsch)

CROSSREFS

Sequence in context: A067745 A070408 A176672 * A107323 A046557 A125719

Adjacent sequences:  A107468 A107469 A107470 * A107472 A107473 A107474

KEYWORD

sign

AUTHOR

Leroy Quet May 27 2005

EXTENSIONS

More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), May 28 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 17 02:48 EST 2012. Contains 205978 sequences.