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URL: https://oeis.org/A306970

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A306970
Numbers of the form 8*k+3 not represented by 2*x^2+4*y^2+4*y*z+9*z^2.
0
3, 43, 163, 907
OFFSET
1,1
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).
Sequence in context: A042661 A281503 A030990 * A376737 A054698 A229695
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Mar 26 2019
STATUS
approved