login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A051962 Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 21. 24
337, 569, 977, 1453, 1669, 1741, 2053, 2293, 4093, 4349, 5437, 5557, 8861, 9341, 10133, 10709, 11117, 12917, 14549, 15053, 16253, 18413, 18917, 19013, 19973, 20117, 20333, 25373, 28493, 29333 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

R. A. Mollin, Quadratics, CRC Press, 1996, Appendix A.

LINKS

Table of n, a(n) for n=1..30.

CROSSREFS

Cf. A050950-A050969, A051962-A051965.

Sequence in context: A153164 A020358 A260540 * A214492 A157999 A152853

Adjacent sequences:  A051959 A051960 A051961 * A051963 A051964 A051965

KEYWORD

nonn,fini,full

AUTHOR

N. J. A. Sloane, Jan 04 2000

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 22:40 EDT 2021. Contains 343117 sequences. (Running on oeis4.)