A186105 Primes of the form 3*6^k+1.

19, 109, 3889, 139969, 839809, 5038849, 1088391169, 1410554953729, 511745184538734624769, 110536959860366678949889, 2424843832394292181929418801369608880129

Offset

1,1

Comments

The values of k (1,2,4,6,7,8,11,15,26,29,50) are in A186112.

Links

Table of n, a(n) for n=1..11.

Example

3*6^15+1 = 1410554953729 is prime.

Crossrefs

Cf. A186112.

Sequence in context: A281170 A158715 A372010 * A080442 A033655 A245753

Adjacent sequences: A186102 A186103 A186104 * A186106 A186107 A186108

Keyword

nonn

Author

Gilbert Mozzo, Feb 12 2011

Status

approved