|
| |
|
|
A084792
|
|
Primes other than prime(prime(n)+n-1).
|
|
1
| |
|
|
2, 5, 11, 13, 19, 23, 31, 37, 41, 43, 53, 59, 67, 71, 73, 79, 89, 97, 103, 107, 109, 113, 131, 137, 139, 149, 151, 157, 167, 173, 181, 191, 193, 197, 199, 211, 227, 229, 233, 239, 251, 257, 269, 271, 277, 281, 293, 307, 311, 313, 317, 331, 347, 349, 353, 359
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Contribution from Carmine Suriano (surianonoi5(AT)libero.it), Jan 25 2011: (Start)
Can be obtained from the following sieve: consider the list of all primes, at step n remove the prime(n)-th number in the list, compact and restart.
a(n) can be approximated by 3n^2/5000+9.124n-285.77 (End)
|
|
|
LINKS
| Carmine Suriano, Table of n, a(n) for n = 1..2173
|
|
|
MATHEMATICA
| t=Table[Prime[Prime[n]+n-1], {n, 20}]; Complement[Prime[Range[PrimePi[t[[-1]]]]], t]
|
|
|
CROSSREFS
| Sequence in context: A045360 A001915 A127437 * A109640 A191048 A105961
Adjacent sequences: A084789 A084790 A084791 * A084793 A084794 A084795
|
|
|
KEYWORD
| nonn,easy,less
|
|
|
AUTHOR
| Amarnath Murthy and Jason Earls (zevi_35711(AT)yahoo.com), Jul 12 2003
|
|
|
EXTENSIONS
| Edited by Don Reble (djr(AT)nk.ca), Mar 14 2006
|
| |
|
|
