A219728 - OEIS

A219728

Squares of the form x^3 + 2*y^3, with x, y > 0.

81, 5041, 5184, 10000, 46225, 59049, 77841, 83521, 322624, 331776, 640000, 685584, 707281, 1265625, 2958400, 3157729, 3418801, 3674889, 3779136, 4157521, 4981824, 5345344, 5602689, 5736025, 7290000, 9150625, 9529569, 10725625, 12257001, 14776336, 15904144

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Subsequence of A219726.

LINKS

Donovan Johnson, Table of n, a(n) for n = 1..1000

EXAMPLE

81: (x = 3, y = 3), 5041: (x = 17, y = 4).

MATHEMATICA

With[{nn=300}, Select[Flatten[Table[x^3+2y^3, {x, nn}, {y, nn}]], IntegerQ[ Sqrt[#]]&]//Union] (* Harvey P. Dale, Oct 24 2018 *)

CROSSREFS