login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A023681 Discriminants of quartic fields with 2 complex conjugates (negated). 0
275, 283, 331, 400, 448, 475, 491, 507, 563, 643, 688, 731, 751, 775, 848, 976, 1024, 1099, 1107, 1156, 1192, 1255, 1323, 1328, 1371, 1375, 1399, 1423, 1424, 1456 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

I. Gaal, Diophantine Equations and Power Integral Bases: New Computational Methods, Springer 2002. See page 164.

M. Pohst and H. Zassenhaus, Algorithmic Algebraic Number Theory, Cambridge Univ. Press, 1989, pp. 439-440.

LINKS

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

CROSSREFS

Sequence in context: A171346 A001242 A214111 * A070272 A066127 A062377

Adjacent sequences:  A023678 A023679 A023680 * A023682 A023683 A023684

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane.

EXTENSIONS

Added "negated" to definition and added more terms from the Gaal reference. - Michel Marcus and N. J. A. Sloane, Apr 30 2016

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 March 24 12:14 EDT 2019. Contains 321448 sequences. (Running on oeis4.)