%I #11 May 25 2023 01:28:23
%S 1,17,37,53,86,119,177,215,275,331,424,516,632,764,928,1057,1247,1427,
%T 1635,1879,2119,2409,2715,3008,3395,3760,4189,4667,5171,5617,6178,
%U 6786,7438,8071,8836,9572,10456,11333,12396,13266,14214,15379,16518,17703,19018,20275
%N 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.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PerfectPower.html">Perfect Power</a>
%e For n = 2: 17 = 1 + 16 = 8 + 9.
%Y Cf. A001597, A362424, A362425, A362428.
%K nonn
%O 1,2
%A _Ilya Gutkovskiy_, May 14 2023
%E a(13) and beyond from _Michael S. Branicky_, May 24 2023