

A238198


Triangle of the discriminant of the polynomials x^n  x^m + 1, where 0 < m < n.


5



3, 23, 23, 229, 144, 229, 2869, 3017, 3017, 2869, 43531, 33856, 19683, 33856, 43531, 776887, 811043, 816631, 816631, 811043, 776887, 15953673, 13424896, 16692841, 5308416, 16692841, 13424896, 15953673, 370643273, 384126317, 239483061
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OFFSET

1,1


COMMENTS

Boyd et al. mention these numbers.


LINKS

T. D. Noe, Rows n = 1..100 of triangle, flattened
David W. Boyd, Greg Martin, and Mark Thom, Squarefree values of trinomial discriminants, arXiv 1402.5148 [math.NT], 2014.
William Craig, Cubefree Trinomial Discriminants, arXiv:1901.03653 [math.NT], 2019.


MATHEMATICA

Flatten[Table[Discriminant[x^n  x^m + 1, x], {n, 2, 9}, {m, n  1}]]


CROSSREFS

Cf. A238195 (discriminant of x^n  x^m  1).
Cf. A238196 (discriminant of x^n + x^m  1).
Cf. A238197 (discriminant of x^n + x^m + 1).
Cf. A238199 (union).
Sequence in context: A298885 A298657 A299609 * A178177 A124076 A153834
Adjacent sequences: A238195 A238196 A238197 * A238199 A238200 A238201


KEYWORD

sign,tabl


AUTHOR

T. D. Noe, Feb 24 2014


STATUS

approved



