|
Search: id:A065317
|
|
|
| A065317 |
|
Largest prime divisor of n-th primorial + (n+1)-st prime. |
|
+0
4
|
|
| 5, 11, 37, 17, 101, 30047, 510529, 9699713, 1427, 76829, 789077, 659863, 810104837, 13082761331670077, 652833094897, 32589158477190044789, 1922760350154212639131, 28406001782370300553, 770555057
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
FORMULA
|
a(n)=A006530[A002110(n)+A000040(n+1)]
|
|
EXAMPLE
|
n=3,3rd primorial=30,p(4)=7, sum=37, a(3)=37.
|
|
CROSSREFS
|
A002110, A000040, A006530, A006530, A057713, A002584, A002585, A051342 A065314-A065317.
Sequence in context: A054854 A005178 A065315 this_sequence A074497 A077466 A074626
Adjacent sequences: A065314 A065315 A065316 this_sequence A065318 A065319 A065320
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Labos E. (labos(AT)ana.sote.hu), Oct 29 2001
|
|
|
Search completed in 0.002 seconds
|
