

A225423


Primes p such that p + 70000000 is also prime.


2



37, 43, 103, 157, 181, 283, 331, 379, 409, 433, 613, 631, 643, 691, 739, 811, 823, 829, 991, 1021, 1093, 1171, 1201, 1237, 1249, 1279, 1297, 1381, 1483, 1741, 1759, 1777, 1873, 1879, 2011, 2017, 2131, 2221, 2239, 2269, 2341, 2377, 2467, 2473, 2551, 2659, 2791
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


COMMENTS

Yitang (Tom) Zhang announced yesterday that he could prove that there are an infinite number of ktwin primes p, p+k, for some k < 70000000. Here 70000000 is only an upper bound. See the Comments in A028334.  corrected by Jonathan Sondow, May 17 2013


LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000
Christian Perfect and Peter Rowlett, Primes gotta stick together
Wikipedia, Yitang Zhang


MATHEMATICA

Select[Prime[Range[600]], PrimeQ[70000000 + #] &]


CROSSREFS

Cf. A001359 (first member of a twin prime pair), A028334.
Sequence in context: A176927 A039950 A186281 * A322098 A039351 A043174
Adjacent sequences: A225420 A225421 A225422 * A225424 A225425 A225426


KEYWORD

nonn


AUTHOR

T. D. Noe, May 15 2013


STATUS

approved



