A034169 Disjoint discriminants (one form per genus) of type 2.
1, 3, 5, 11, 15, 21, 29, 35, 39, 51, 65, 95, 105, 165, 231
Offset: 1
References
- J. M. Borwein, D. H. Bailey and R. Girgensohn, Experimentation in Mathematics, A K Peters, Ltd., Natick, MA, 2004. x+357 pp. See p. 198.
- J. M. Borwein and P. B. Borwein, Pi and the AGM, page 293.
- L. E. Dickson, Introduction to the theory of numbers, Dover, NY, 1929.
Links
- J. Borwein and K.-K. S. Choi, On the representations of xy+yz+zx, Experimental Mathematics, 9 (2000), 153-158.
- Experimental Mathematics, Home Page
Formula
a(n) = A034168(n) / 2. - Sean A. Irvine, Aug 03 2020