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

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A088680 Prime (2n+1) - prime (2n). 5
2, 4, 4, 4, 2, 4, 4, 6, 6, 2, 4, 8, 2, 2, 14, 6, 10, 6, 4, 6, 10, 4, 12, 4, 4, 2, 6, 6, 6, 2, 14, 2, 14, 10, 4, 8, 6, 6, 4, 10, 10, 6, 6, 4, 4, 8, 8, 6, 2, 6, 6, 2, 10, 6, 6, 4, 12, 2, 6, 2, 4, 8, 8, 8, 6, 8, 4, 4, 10, 2, 2, 2, 14, 2, 14, 2, 20, 8, 8, 6, 14, 6, 8, 12, 6, 10, 6, 2, 2, 18, 2, 6, 8, 6, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Partition the primes into pairs starting with 3: (3, 5), (7, 11), (13, 17), (19, 23), (29, 31), (37, 41), (43, 47). Sequence gives differences between pairs.

A bisection of A001223.

LINKS

Table of n, a(n) for n=0..94.

MATHEMATICA

Table[Prime[2n + 1] - Prime[2n], {n, 100}] (from Robert G. Wilson v May 29 2004)

CROSSREFS

Cf. A078584, A088682, A088683, A088684, A078584.

Sequence in context: A097541 A151819 A079560 * A143194 A036264 A105192

Adjacent sequences:  A088677 A088678 A088679 * A088681 A088682 A088683

KEYWORD

base,easy,nonn

AUTHOR

Zak Seidov, Oct 05 2003

EXTENSIONS

Edited by Robert G. Wilson v, May 29 2004

STATUS

approved

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

Content is available under The OEIS End-User License Agreement .

Last modified November 22 22:27 EST 2014. Contains 249835 sequences.