A047724 Sum of 13 nonzero fourth powers.

13, 28, 43, 58, 73, 88, 93, 103, 108, 118, 123, 133, 138, 148, 153, 163, 168, 173, 178, 183, 188, 193, 198, 203, 208, 213, 218, 228, 233, 243, 248, 253, 258, 263, 268, 273, 278, 283, 293, 298, 308, 313, 323, 328, 333, 338, 343, 348, 358, 363, 373, 378, 388

Offset: 1

Author

Arlin Anderson (starship1(AT)gmail.com)

Keywords

• nonn

Crossrefs

Cf. A000583, A003346, A046044.

Programs

Mathematica

Union[Total/@Tuples[Range[3]^4,13]] (* Harvey P. Dale, Nov 04 2015 *)