1,2
H. Hasse, Number Theory, Springer-Verlag, NY, 1980, p. 617.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
A. M. Odlyzko, Bounds for discriminants and related estimates for class numbers, regulators and zeros of zeta functions: A survey of recent results, Sem. Theorie des Nombres, Bordeaux, 2 (1990), pp. 119-141.
Index entries for sequences related to quadratic fields
Sequence in context: A136729 A102773 A028575 * A052750 A145088 A192557
Adjacent sequences: A006551 A006552 A006553 * A006555 A006556 A006557
nonn,nice
N. J. A. Sloane (njas(AT)research.att.com).