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A047724
Sum of 13 nonzero fourth powers.
2
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
1,1
MATHEMATICA
Union[Total/@Tuples[Range[3]^4, 13]] (* Harvey P. Dale, Nov 04 2015 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Arlin Anderson (starship1(AT)gmail.com)
STATUS
approved