OFFSET
1,1
LINKS
Andy Huchala, Table of n, a(n) for n = 1..20000
Eric Weisstein's World of Mathematics, Class Number
MATHEMATICA
Select[Range[6153], NumberFieldDiscriminant@Sqrt[#] == # && NumberFieldClassNumber@Sqrt[#] == 6 &]
CROSSREFS
KEYWORD
nonn
AUTHOR
Arkadiusz Wesolowski, Oct 22 2012
STATUS
approved