|
Search: id:A065314
|
|
|
| A065314 |
|
Smallest prime divisor of n-th primorial - (n+1)-st prime. |
|
+0 4
|
|
| 23, 199, 2297, 30013, 41, 9699667, 2819, 53, 21701, 79, 163, 181, 61, 1619, 14669, 307, 103, 306091, 907, 3217644767340672907899084554047, 267064515689275851355624017992701, 23768741896345550770650537601358213
(list; graph; listen)
|
|
|
OFFSET
|
3,1
|
|
|
FORMULA
|
a(n)=A020639[A002110(n)-A000040(n+1)]
|
|
EXAMPLE
|
n=3, 3rd primorial=30,p(4)=7,difference=23, a(3)=23.
|
|
CROSSREFS
|
Cf. A002110, A000040, A006530, A006530, A057713, A002584, A002585, A051342 A065314-A065317.
Sequence in context: A062640 A108646 A058193 this_sequence A065316 A060882 A128334
Adjacent sequences: A065311 A065312 A065313 this_sequence A065315 A065316 A065317
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Labos E. (labos(AT)ana.sote.hu), Oct 29 2001
|
|
|
Search completed in 0.002 seconds
|