|
Search: id:A162141
|
|
|
| A162141 |
|
Primes p such that (p+3839)/3840 is also a prime number. |
|
+0
1
|
|
| 7681, 15361, 23041, 61441, 84481, 115201, 138241, 161281, 176641, 299521, 384001, 414721, 430081, 576001, 729601, 737281, 760321, 875521, 890881, 913921, 921601, 1075201, 1082881, 1198081, 1374721, 1451521, 1651201, 1720321, 1751041
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
Primes p such that (((((((((p+1)/2)+3)/4)+5)/6)+7)/8)+9)/10 are prime numbers.
There is no requirement of the intermediate numbers on the level ((((((((p+1)/2)+3)/4)+5)/6)+7)/8)+9
to be prime or composite.
|
|
MATHEMATICA
|
lst={}; Do[p=Prime[n]; If[PrimeQ[(((((((((p+1)/2)+3)/4)+5)/6)+7)/8)+9)/10], AppendTo[lst, p]], {n, 9!}]; lst
|
|
CROSSREFS
|
Sequence in context: A008774 A076339 A105132 this_sequence A133859 A012082 A035907
Adjacent sequences: A162138 A162139 A162140 this_sequence A162142 A162143 A162144
|
|
KEYWORD
|
nonn,less
|
|
AUTHOR
|
Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 25 2009
|
|
EXTENSIONS
|
Definition simplified by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 23 2009
|
|
|
Search completed in 0.002 seconds
|
