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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A022886 n-th index k such that p(k) + p(k+4) = p(k+1) + p(k+3). 1
2, 7, 10, 15, 17, 18, 19, 22, 36, 37, 49, 51, 55, 57, 71, 73, 75, 85, 90, 100, 102, 105, 107, 108, 113, 130, 131, 132, 138, 161, 164, 167, 172, 173, 184, 185, 199, 206, 209, 212, 216, 226, 239, 244, 251, 252, 253, 257, 261, 262, 265, 266, 272, 315 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..54.

PROG

(PARI) isok(k) = (prime(k) + prime(k+4)) == (prime(k+1) + prime(k+3)); \\ Michel Marcus, Sep 30 2013

CROSSREFS

Sequence in context: A303741 A085303 A304799 * A047524 A190447 A190375

Adjacent sequences:  A022883 A022884 A022885 * A022887 A022888 A022889

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

Corrected by R. J. Mathar, Aug 06 2015

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 20 16:15 EDT 2019. Contains 325185 sequences. (Running on oeis4.)