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A363040
a(n) is the smallest number which can be represented as the sum of n distinct perfect powers (A001597) in exactly n ways, or -1 if no such number exists.
2
1, 17, 37, 53, 86, 119, 177, 215, 275, 331, 424, 516, 632, 764, 928, 1057, 1247, 1427, 1635, 1879, 2119, 2409, 2715, 3008, 3395, 3760, 4189, 4667, 5171, 5617, 6178, 6786, 7438, 8071, 8836, 9572, 10456, 11333, 12396, 13266, 14214, 15379, 16518, 17703, 19018, 20275
OFFSET
1,2
LINKS
Eric Weisstein's World of Mathematics, Perfect Power
EXAMPLE
For n = 2: 17 = 1 + 16 = 8 + 9.
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, May 14 2023
EXTENSIONS
a(13) and beyond from Michael S. Branicky, May 24 2023
STATUS
approved