id:A106311 - OEIS Search Results

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Possible positive values of the discriminant of irreducible monic integral cubic polynomials.

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49, 81, 148, 169, 229, 257, 316, 321, 361, 404, 469, 473, 564, 568, 592, 621, 697, 729, 733, 756, 761, 785, 788, 837, 892, 916, 940, 985, 993, 1016, 1076, 1101, 1129, 1229, 1257, 1264, 1300, 1304, 1345, 1369, 1373, 1384, 1396, 1425, 1436, 1489, 1492, 1509 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`These discriminants were found by examining all irreducible integral cubic polynomials x^3+ax^2+bx+c for a,b,c in [ -30,30]. Closely related to A006832, discriminants of totally real cubic fields.`
	LINKS	`Eric Weisstein's World of Mathematics, Polynomial Discriminant`
	CROSSREFS	`Sequence in context: A103216 A036307 A056938 this_sequence A006832 A093894 A158725` `Adjacent sequences: A106308 A106309 A106310 this_sequence A106312 A106313 A106314`
	KEYWORD	`nonn`
	AUTHOR	`T. D. Noe (noe(AT)sspectra.com), May 17 2005`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

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