A215235 Least number k such that the sum of the 2n+1 consecutive primes starting with prime(k) is prime.

1, 3, 3, 7, 2, 3, 10, 2, 2, 5, 4, 4, 3, 4, 6, 6, 4, 3, 3, 6, 4, 4, 4, 4, 5, 7, 2, 2, 25, 10, 2, 6, 2, 8, 8, 2, 3, 2, 9, 4, 5, 16, 11, 24, 16, 8, 5, 2, 7, 9, 23, 5, 3, 15, 12, 3, 7, 2, 2, 10, 9, 3, 3, 3, 17, 4, 4, 11, 2, 19, 2, 2, 24, 20, 11, 13, 10, 2, 7, 5, 4

Offset: 0

Author

T. D. Noe, Aug 29 2012

Keywords

• nonn

Comments

The sums are in A070934. The initial primes are in A089793.

Links

• T. D. Noe, Table of n, a(n) for n = 0..10000

Crossrefs

Cf. A070934, A089793.