A146362 Primes p such that continued fraction of (1 + sqrt(p))/2 has period 17 : primes in A146340.

521, 617, 709, 1433, 1597, 2549, 2909, 3581, 3821, 4013, 4649, 5501, 5693, 5813, 6197, 7853, 8093, 8573, 9281, 9677, 10597, 10973, 11273, 13109, 13613, 15413, 15641, 15737, 16001, 16477, 17093, 20261, 22637, 24697, 26717, 32413, 35537, 38177, 43717, 46649, 47681

Offset: 1

Author

Artur Jasinski, Oct 30 2008

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..2000

Crossrefs

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

Programs

Mathematica

Select[Range[2*10^4], PrimeQ[#] && Length[ContinuedFraction[(1+Sqrt[#])/2][[2]]] == 17 &] (* Amiram Eldar, Mar 30 2020 *)

Extensions

Period length in definition corrected, 2579, 5003 removed, 5813 inserted by R. J. Mathar, Sep 06 2009

More terms from Amiram Eldar, Mar 30 2020