login
Not of form x^3 + 2y^3 + 3z^3.
1

%I #18 Dec 14 2022 04:47:04

%S 36,288

%N Not of form x^3 + 2y^3 + 3z^3.

%C The last term is likely to be 288.

%e 7 = 6^3 + 2*(-4)^3 + 3*(-3)^3 = 216 - 128 - 81, so 7 is not in the sequence. - _Peter Munn_, Dec 13 2022

%Y Cf. A202173.

%K nonn,bref,hard

%O 1,1

%A Richard C. Schroeppel