OFFSET
0,1
COMMENTS
Entries are indexed by values of n from A039957.
REFERENCES
R. A. Mollin, Quadratics, CRC Press, 1996, Tables B1-B3.
LINKS
S. R. Finch, Class number theory
Steven R. Finch, Class number theory [Cached copy, with permission of the author]
MATHEMATICA
NumberFieldFundamentalUnits[ Sqrt[#] ][[1, 2, 1]] & /@ Select[Range[3, 195, 4], SquareFreeQ ] (* Jean-François Alcover, Jul 09 2013 *)
CROSSREFS
KEYWORD
nonn,easy,nice
AUTHOR
N. J. A. Sloane, Jan 06 2000
STATUS
approved