login
Numbers that are either congruent to +-4 mod 9, or else are cubes or twice cubes.
3

%I #5 May 08 2020 04:19:46

%S 1,2,4,5,8,13,14,16,22,23,27,31,32,40,41,49,50,54,58,59,64,67,68,76,

%T 77,85,86,94,95,103,104,112,113,121,122,125,128,130,131,139,140,148,

%U 149,157,158,166,167,175,176,184,185,193,194,202,203,211,212,216,220,221,229,230,238,239,247,248,250,256,257,265

%N Numbers that are either congruent to +-4 mod 9, or else are cubes or twice cubes.

%H Andrew Sutherland, <a href="https://drive.google.com/file/d/1qzD__dviONTqHQH7DBFmsQ0MdCa7ePRg/view">Sums of three cubes</a>, Slides of a talk given May 07 2020 on the Number Theory Web.

%Y Cf. A000578, A060464, A156638.

%Y Complement of A334521.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, May 08 2020