cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Previous Showing 21-23 of 23 results.

A051980 Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 15.

Original entry on oeis.org

481, 1417, 1466, 2858, 3065, 3589, 3785, 3977, 4538, 5317, 5941, 6641, 6749, 7082, 11861, 12701, 12833, 13793, 14909, 16589, 17153, 18185, 18365, 18581, 20885, 24221, 27989, 29069, 32885, 33365, 44813, 47165, 51173, 66197, 67973, 70493, 78917
Offset: 1

Views

Author

N. J. A. Sloane, Jan 04 2000

Keywords

References

  • R. A. Mollin, Quadratics, CRC Press, 1996, Appendix A, Table A3.

Crossrefs

Cf. A051966-A051989.

Extensions

a(16)=24221 and a(37) inserted by Georg Fischer, Sep 21 2021

A051982 Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 17.

Original entry on oeis.org

1018, 1994, 2965, 4285, 5354, 5498, 5585, 8917, 9242, 9665, 10265, 12085, 13061, 13957, 14677, 15242, 15613, 16109, 16565, 16613, 17173, 17285, 17429, 17861, 18037, 18737, 18965, 34047, 34957, 35285, 36413, 37949, 40085, 40501, 41165, 47813, 48149, 50357, 53285, 57797, 58853, 61133, 62957, 63653, 86957, 146453
Offset: 1

Views

Author

N. J. A. Sloane, Jan 04 2000

Keywords

Comments

The article in 1992 had a(28)=34037. Georg Fischer, Sep 21 2021

References

  • R. A. Mollin, Quadratics, CRC Press, 1996, Appendix A, Table A3.

Links

Crossrefs

Cf. A051966-A051989.

Extensions

a(36) and following from Georg Fischer, Sep 21 2021

A051984 Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 19.

Original entry on oeis.org

922, 1706, 2186, 2257, 3386, 8522, 8714, 9997, 16781, 17177, 20513, 20813, 21509, 24341, 26165, 28453, 29597, 30365, 31085, 35333, 35885, 36173, 37685, 37757, 38765, 41765, 43469, 46157, 50453, 52637, 53765, 57965, 59765, 62285, 65501, 70733, 75197, 79085, 82277, 84773, 107333, 109757, 139037, 144317
Offset: 1

Views

Author

N. J. A. Sloane, Jan 04 2000

Keywords

References

  • R. A. Mollin, Quadratics, CRC Press, 1996, Appendix A, Table A3.

Crossrefs

Cf. A051966-A051989.

Extensions

a(35) and following from Georg Fischer, Sep 21 2021
Previous Showing 21-23 of 23 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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