A146353 Primes p such that continued fraction of (1 + sqrt(p))/2 has period 8; primes in A146333.

31, 71, 383, 503, 743, 983, 1327, 2543, 4271, 5711, 6151, 8543, 9871, 14503, 17783, 21191, 22031, 25463, 35023, 35759, 36263, 36559, 40543, 46471, 47711, 60727, 66343, 72551, 73751, 75767, 81551, 83639, 91463, 98327, 142183, 159407, 160343, 193031, 195743, 218623

Offset: 1

Author

Artur Jasinski, Oct 30 2008

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A000290, A050950-A050969, A078370, A146326-A146345, A146348-A146360.

Programs

Mathematica

Select[Prime[Range[10000]], 8 == Length[ContinuedFraction[(1 + Sqrt[#])/2][[2]]] &]

Extensions

8467 removed - R. J. Mathar, Sep 06 2009

Extended by T. D. Noe, Mar 22 2011

More terms from Amiram Eldar, Mar 30 2020