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A130227 Smallest integer y satisfying the Pell equation x^2-ny^2=-1 for the values of n given in A031396. 1
1, 1, 1, 1, 5, 1, 1, 13, 1, 5, 1, 25, 13, 3805, 1, 125, 5, 1, 41, 53, 569, 1, 389, 851525, 73, 1, 61, 5, 149, 1, 9305, 385645, 1, 85, 82596761, 5, 126985, 1, 221, 17, 1, 113, 1517, 4574225, 281 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Ray Chandler, Table of n, a(n) for n = 1..10000

CROSSREFS

Cf. A031396, A130226.

Sequence in context: A298328 A299221 A300035 * A114123 A143007 A152654

Adjacent sequences:  A130224 A130225 A130226 * A130228 A130229 A130230

KEYWORD

nonn

AUTHOR

Colin Barker, Aug 05 2007

STATUS

approved

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Last modified February 22 01:04 EST 2019. Contains 320381 sequences. (Running on oeis4.)