OFFSET
1,1
COMMENTS
The numbers not of the form x^2+5y^2+5z^2.
LINKS
L. J. Mordell, A new Waring's problem with squares of linear forms, Quart. J. Math., 1 (1930), 276-288 (see p. 283).
MATHEMATICA
Module[{upto=150}, Select[Union[Flatten[Table[4^i {8j+7, 5j+2, 5j-2}, {i, 0, 5}, {j, 0, 30}]]], #>0 && #<=upto&]] (* Harvey P. Dale, May 31 2023 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jun 02 2000
STATUS
approved