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A033269 Numbers n such that every genus of binary quadratic forms of discriminant -4n consists of a single class and the class number h(-4n) = 16. 1
840, 1320, 1365, 1848 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

D. Cox, "Primes of Form x^2 + n y^2", Wiley, 1989, p. 60.

G. B. Mathews, Theory of Numbers, Chelsea, no date, p. 263.

CROSSREFS

A subsequence of A000926.

Sequence in context: A102793 A144770 A068546 * A179670 A092002 A169827

Adjacent sequences:  A033266 A033267 A033268 * A033270 A033271 A033272

KEYWORD

nonn,fini,full

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 10:06 EST 2012. Contains 205763 sequences.