

A053371


Write fundamental unit for real quadratic field of discriminant n as x + y*omega; sequence gives values of x for n == 2 mod 4.


0



1, 5, 3, 15, 197, 5, 11, 35, 37, 13, 24335, 99, 63, 65, 251, 43, 53, 9, 10405, 2143295, 101, 4005, 21, 1025, 306917, 11, 57, 145925, 47, 143, 145, 21295, 7743, 1700902565, 13, 1451, 1601, 27, 7501, 52021, 195, 3141, 59535, 29
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OFFSET

0,2


COMMENTS

Entries are indexed by values of n from A039956.


REFERENCES

R. A. Mollin, Quadratics, CRC Press, 1996, Tables B1B3.


LINKS



MATHEMATICA

NumberFieldFundamentalUnits[ Sqrt[#] ][[1, 2, 1]] & /@ Select[Range[2, 210, 2], SquareFreeQ] (* JeanFrançois Alcover, Jul 09 2013 *)


CROSSREFS



KEYWORD

nonn,easy,nice


AUTHOR



STATUS

approved



