A047651 Minimal positive value of tau modulo primes in A047650.

6, 10, 23, 14, 82, 144, 112, 22, 122, 100, 173, 171, 92, 339, 343, 228, 383, 458, 326, 460, 407, 485, 405, 157, 83, 125, 530, 606, 176, 136, 601, 42, 321, 236, 364, 842, 46, 914, 612, 676, 380, 535, 335, 393, 54, 123, 1209, 1298, 812, 1196, 1371, 252, 314, 851, 524, 1157

Offset

1,1

Comments

Since sqrt(5) mod p is determined up to a sign, there are two values that tau mod p can take.

Minimal positive solution to the equation x^2 - x - 1 = 0 modulo p for primes p in A047650.

Links

Table of n, a(n) for n=1..56.

E. Lehmer, On the quadratic character of the Fibonacci root, Fib. Quart., 4 (1966), 135-138.

E. Lehmer, On the quadratic character of the Fibonacci root (annotated scanned copy)

Crossrefs

Cf. A047650.

Sequence in context: A337190 A179875 A166305 * A079426 A212161 A132994

Adjacent sequences: A047648 A047649 A047650 * A047652 A047653 A047654

Keyword

nonn,easy

Author

N. J. A. Sloane

Extensions

Edited and extended by Max Alekseyev, Feb 06 2010

Status

approved