Discriminant of even primitive forms of regular ternary forms.

1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 8, 8, 8, 8, 9, 9, 9, 9, 10, 11, 12, 12, 12, 12, 12, 12, 14, 15, 15, 16, 16, 16, 16, 16, 16, 18, 18, 20, 20, 20, 20, 21, 23, 24, 24, 24, 24, 24, 24, 25, 25, 25, 27, 27, 27, 27, 28, 28, 28, 30, 32, 32, 32, 32, 32, 32, 32, 35, 36, 36

1

Multiply these discriminants by 4 to obtain the discriminant used in S000114. All the discriminants are listed in S000116.

T. D. Noe, Plot of 665 terms

T. D. Noe, Table of 665 terms

William C. Jagy, Irving Kaplansky, and Alexander Schiemann, There are 913 regular ternary forms, Mathematika, Vol. 44, Issue 02, Dec. 1997, pp 332-341.

William C. Jagy, Integral positive ternary quadratic forms (unpublished), 2014.

Cf. S000114.

nonn,fini,full

T. D. Noe, Jul 01 2014