A204672 Primes followed by a gap of 120.

1895359, 2898239, 6085441, 7160227, 7784039, 7803491, 7826899, 8367397, 8648557, 9452959, 10052071, 10863973, 11630503, 11962823, 12109697, 12230233, 12415681, 14411737, 14531899, 15014557, 15020737, 15611909, 16179041

Offset: 1

Author

M. F. Hasler, Jan 18 2012

Keywords

• nonn

Links

• M. F. Hasler, Table of n, a(n) for n = 1..433 (all a(n) < 10^8).
• Index entries for primes, gaps between

Crossrefs

Cf. A058193 (first gap of 6n), A140791 (first gap of 10n).

Cf. A126771 (gap 60), A126724 (gap 150), A204673 (gap 180).

Cf. A001359, A029710, A031924-A031938, A061779, A098974, A124594-A124596, A126784, A134116-A134124, A204665-A204670.

Programs

MATLAB

N = 2*10^7; % to get all terms <= N
P = primes(N+120);
J = find(P(2:end) - P(1:end-1) == 120);
P(J)  % Robert Israel, Feb 28 2017

Mathematica

Transpose[Select[Partition[Prime[Range[1100000]],2,1],Last[#]-First[#] == 120&]] [[1]] (* Harvey P. Dale, Jul 11 2014 *)

PARI

g=120;c=o=0;forprime(p=1,default(primelimit),(-o+o=p)==g&write("c:/temp/b204672.txt",c++" "p-g))