A306970 Numbers of the form 8*k+3 not represented by 2*x^2+4*y^2+4*y*z+9*z^2.

3, 43, 163, 907

Offset: 1

Author

N. J. A. Sloane, Mar 26 2019

Keywords

• nonn
• more

Comments

There may be no further terms.

Links

• Irving Kaplansky, The first nontrivial genus of positive definite ternary forms, Mathematics of Computation, Vol. 64 (1995): 341-345.

Crossrefs

Cf. A017101 (numbers of the form 8*k+3).