A051387 Numbers whose 4th power is the sum of two positive cubes in a nontrivial way.

134, 182, 183, 201, 219, 273, 278, 309, 399, 422, 453, 497, 579, 651, 658, 1036, 1132, 1324, 1464, 1482, 1554, 1608, 1612, 1752, 1842, 1996, 2058, 2184, 2457, 2472, 2476, 2483, 2574, 2634, 2994, 3052, 3192, 3465, 3474, 3618, 3624, 3724, 3858, 3906, 3976

Offset: 1

Author

Jud McCranie

Keywords

• nonn

Comments

When x is the sum of 2 positive cubes (A003325) there is a trivial solution.

From Chai Wah Wu, Feb 23 2017: (Start)

2457, 4914, 4977, 8001, 8216, ... are terms that are also in A003325.

10202696, 29791125, 48137544, ... are terms that are also in A001235. (End)

Examples

			273^4 = 728^3 + 1729^3.
		

Links

• Chai Wah Wu, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A001235, A003325, A051386.