OFFSET
1,1
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
EXAMPLE
10*3 = 30 = prime(6) + prime(7) = 13+17;
10*41 = 410 = prime(46) + prime(47) = 199+211.
MATHEMATICA
Select[Map[Total, Partition[Prime@ Range@ 2200, 2, 1]]/10, PrimeQ] (* Michael De Vlieger, Jun 30 2017 *)
PROG
(PARI) is(n)=isprime(n) && precprime(5*n)+nextprime(5*n)==10*n \\ Charles R Greathouse IV, Jul 02 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Jun 30 2017
STATUS
approved