A235874 First term of the earliest sequence of n consecutive strong primes.

11, 37, 1657, 1847, 74687, 322193, 5051341, 11938853, 245333213, 397597169, 130272314657, 1273135176871

Offset

1,1

Comments

A strong prime is a prime p(n) such that p(n) > (p(n-1) + p(n+1))/2.

Links

Table of n, a(n) for n=1..12.

Example

a(2) = 37 because the two consecutive primes 37 and 41 are both strong and are the first such pair.

Crossrefs

Cf. A051634, A229832.

Sequence in context: A084014 A232976 A084018 * A012820 A162929 A116059

Adjacent sequences: A235871 A235872 A235873 * A235875 A235876 A235877

Keyword

nonn

Author

Giovanni Resta, Jan 16 2014

Status

approved