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%I #15 Oct 19 2017 03:13:49
%S 1,2,4,7,17,54,358,1859,13911,175164,3480256,97050825,1947896985,
%T 60119287462
%N a(n) = smallest number > a(n-1) that is not a sum of exactly one power of each of the numbers 1 through n.
%e a(2)=4 because 4 is the first number >2 that is not of the form 1^i+2^j; a(3)=7 because 7 is smallest number >4 not of form 1^i+2^j+3^k.
%Y Cf. A047870.
%K nonn,nice
%O 0,2
%A _N. J. A. Sloane_
%E More terms from _David W. Wilson
%E Two more terms from _Don Reble_, Oct 27 2001
%E a(12) from _Donovan Johnson_, Oct 07 2009
%E a(13) from _Donovan Johnson_, Jul 26 2010
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