login
Numbers n such that n^3 is of form x^2+40y^2 with positive x,y.
0

%I #2 Mar 30 2012 17:26:28

%S 14,26,41,44,46,49,56,65,74,76,89,94,104,106,110,121,126,140,154,161,

%T 164,169,176,184,185,190,196,206,209,224,234,236,241,254,260,265,266,

%U 281,286,296,304,314,329,334,346,350,356,361,364,369,376,385,394,396,401,409,410,414,416,424,440,441,446,449,460,481,484,490,494,504,506,521,524,526,529,554,556,560,569,74,585

%N Numbers n such that n^3 is of form x^2+40y^2 with positive x,y.

%Y Cf. A155500, A155501, A155502.

%K nonn

%O 1,1

%A _Zak Seidov_, Jan 23 2009