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The smallest square referenced in A280547 (Smallest number k such that (k+1)^n - k^n is divisible by a square > 1).
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%I #14 Feb 08 2017 02:15:31

%S 9,169,25,121,9,1849,25,169,25,529,9,2809,49,169,25,18769,9,52441,25,

%T 49,529,2209,9,121,9,169,25,3481,9,2217121,25,529,9,121,9,22201,9,169,

%U 25,6889,9,29929,529,169,9,80089,9,1849,25,169,169,11449,9,529,25,361,9

%N The smallest square referenced in A280547 (Smallest number k such that (k+1)^n - k^n is divisible by a square > 1).

%C The square roots of a(n) are given in A282174.

%Y Cf. A280547, A282174.

%K nonn

%O 2,1

%A _Robert Price_, Feb 04 2017