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A014077 Norm of fundamental unit of real quadratic field with discriminant A003658(n), n >= 2. 3
-1, -1, 1, -1, -1, 1, 1, 1, -1, 1, -1, -1, -1, 1, -1, 1, 1, 1, -1, -1, 1, -1, 1, 1, -1, 1, -1, 1, 1, -1, -1, -1, 1, -1, -1, 1, 1, 1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, 1, 1, 1, -1, 1, -1, 1, -1, 1, -1, -1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, 1, 1, -1, 1, 1, 1, -1, 1, -1, 1, -1 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

See A014000 for details about the indexing.

REFERENCES

H. Cohen, A Course in Computational Algebraic Number Theory, Springer, 1993, pp. 515-519.

LINKS

Table of n, a(n) for n=2..83.

CROSSREFS

Cf. A003658, A003652, A014000, A014046.

Sequence in context: A020985 A034947 A097807 * A174351 A181432 A165326

Adjacent sequences:  A014074 A014075 A014076 * A014078 A014079 A014080

KEYWORD

sign

AUTHOR

Eric Rains (rains(AT)caltech.edu)

EXTENSIONS

Offset corrected by Jianing Song, Mar 31 2019

STATUS

approved

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Last modified June 2 12:56 EDT 2020. Contains 334772 sequences. (Running on oeis4.)