A077499 Primes of the form 2^r*11^s + 1.

2, 3, 5, 17, 23, 89, 257, 353, 1409, 2663, 30977, 65537, 170369, 495617, 5767169, 23068673, 59969537, 82458113, 453519617, 3429742097, 4715895383, 15352201217, 39909726209, 1857616347137, 45732811767809, 96757023244289

Offset: 1

Author

Amarnath Murthy, Nov 07 2002

Keywords

• nonn

Comments

Primes p such that p-1 has at most one odd prime divisor 11.

Crossrefs

Cf. A005109, A077497, A077498, A077500.

Extensions

More terms from Ray Chandler, Aug 02 2003