A023681 - OEIS

A023681

Discriminants of quartic fields with 2 complex conjugates (negated).

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

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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: A001242 A214111 A344731 * 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