A035792 Start of a string of exactly 4 consecutive (but disjoint) pairs of twin primes.

9419, 62969, 72221, 392261, 495569, 663569, 1006301, 1138367, 1159187, 1173539, 1322147, 2144477, 2168651, 2502341, 2668217, 3020999, 3215711, 3664679, 4890857, 5248079, 5261699, 5532269, 5561597, 5651729, 5787317, 6256727

Offset: 1

Author

Randall L Rathbun

Keywords

• nonn

References

• Posting to Number Theory List (NMBRTHRY(AT)LISTSERV.NODAK.EDU), Nov. 19 1998.

Links

• Sebastian Petzelberger, Table of n, a(n) for n = 1..10000

Crossrefs

The first term of this sequence is in A087641.

Cf. A001359, A035789, A035790, A035791, A035792, A035793, A035794, A035795.

Programs

Mathematica

Prime[Select[Range[1000000], Prime[ # + 1] - Prime[ # ] == 2 && Prime[ # + 3] - Prime[ # + 2] == 2 && Prime[ # + 5] - Prime[ # + 4] == 2 && Prime[ # + 7] - Prime[ # + 6] == 2 &]] (* Tanya Khovanova, Sep 07 2007 *)

Extensions

a(11)-a(26) from Hugo Pfoertner, Sep 16 2003