|
Search: id:A139019
|
|
|
| A139019 |
|
a(1)=1. a(n) = smallest prime > a(n-1) such that sum{k=1 to n} a(k) is a power of a prime. |
|
+0
3
|
|
| 1, 2, 5, 11, 13, 17, 79, 83, 33554221, 33554501, 2198956146619, 2198956147781, 9002801275337659, 9002801275339331
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
LINKS
|
Leroy Quet, Home Page (listed in lieu of email address)
|
|
PROGRAM
|
(PARI) s=p=1; for(i=1, 10, print1(k", "); while(omega(s+p=nextprime(p+1))>1, ); s+=p)
|
|
CROSSREFS
|
Cf. A139020, A139021.
Sequence in context: A086518 A156672 A145669 this_sequence A031869 A045360 A001915
Adjacent sequences: A139016 A139017 A139018 this_sequence A139020 A139021 A139022
|
|
KEYWORD
|
more,nonn
|
|
AUTHOR
|
Leroy Quet Apr 06 2008
|
|
EXTENSIONS
|
Corrected and extended by M. F. Hasler (Maximilian.Hasler(AT)gmail.com), Apr 06 2008
a(11)-a(14) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 30 2008
|
|
|
Search completed in 0.002 seconds
|
