A031925 Upper prime of a difference of 6 between consecutive primes.

29, 37, 53, 59, 67, 79, 89, 137, 157, 163, 173, 179, 239, 257, 263, 269, 277, 337, 359, 373, 379, 389, 439, 449, 509, 547, 563, 569, 577, 593, 599, 607, 613, 653, 659, 683, 733, 739, 757, 947, 953, 977, 983, 997, 1019, 1039, 1069, 1103, 1109

Offset: 1

Author

Jeff Burch

Keywords

• nonn

Links

• Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
• Index entries for primes, gaps between

Crossrefs

Cf. A031924.

Programs

Maple

for i from 1 to 186 do if ithprime(i+1) = ithprime(i) + 6 then print({ithprime(i+1)}); fi; od; # Zerinvary Lajos, Mar 19 2007

PARI

is(n)=nextprime(n-5)==n && isprime(n-6) \\ Charles R Greathouse IV, Apr 29 2015