|
| |
|
|
A031166
|
|
p(n+4)-p(n) (p()=primes).
|
|
0
| |
|
|
9, 10, 12, 12, 12, 16, 14, 18, 18, 14, 16, 16, 18, 18, 20, 18, 14, 18, 16, 18, 24, 22, 20, 18, 12, 12, 24, 24, 28, 26, 22, 20, 20, 24, 18, 22, 22, 18, 24, 20, 18, 18, 20, 30, 30, 30, 22, 16, 14, 22, 24, 24, 28, 20, 20, 18, 14, 22, 30, 30, 30, 24, 24, 26, 34, 32, 22
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
MAPLE
| ithprime(n+4)-ithprime(n);
|
|
|
MATHEMATICA
| a=4; t=Array[Prime, 123]; Drop[t, a]-Drop[t, -a] [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 13 2009]
|
|
|
PROG
| (MAGMA) [NthPrime(n+4)-NthPrime(n): n in [1..100] ]; // Vincenzo Librandi, Apr 23 2011
|
|
|
CROSSREFS
| Sequence in context: A048013 A048048 A136835 * A202706 A104627 A188057
Adjacent sequences: A031163 A031164 A031165 * A031167 A031168 A031169
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Jeff Burch (jmburch(AT)osprey.smcm.edu)
|
|
|
EXTENSIONS
| Offset changed from 2 to 1; added a(1)=9 by Vincenzo Librandi, Apr 23 2011
|
| |
|
|
