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A033317 Smallest integer y satisfying Pell equation x^2-ny^2=1 for non-square n. +0
7
2, 1, 4, 2, 3, 1, 6, 3, 2, 180, 4, 1, 8, 4, 39, 2, 12, 42, 5, 1, 10, 5, 24, 1820, 2, 273, 3, 4, 6, 1, 12, 6, 4, 3, 320, 2, 531, 30, 24, 3588, 7, 1, 14, 7, 90, 9100, 66, 12, 2, 20, 2574, 69, 4, 226153980, 8, 1, 16, 8, 5967, 4, 936, 30, 413, 2, 267000, 430, 3, 6630, 40, 6, 9 (list; graph; listen)
OFFSET

0,1

REFERENCES

Laurent Beeckmans, Am. Math. Monthly, Volume 101, Number 5, page 442, May '94.

LINKS

S. R. Finch, Class number theory

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

CROSSREFS

Cf. A033313.

Sequence in context: A153281 A130584 A078458 this_sequence A007733 A128520 A123755

Adjacent sequences: A033314 A033315 A033316 this_sequence A033318 A033319 A033320

KEYWORD

nonn

AUTHOR

Eric Weisstein (eric(AT)weisstein.com)

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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