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%I #7 Jul 25 2017 02:25:49
%S 1,11,1169341,20188985439712961,3506790234728288196345900732301,
%T 5190947078637547438603476743093680561,
%U 1041849413143039115171399776907273433339109867252078165841
%N Positive integers k such that k^2 = (m^5 - n^5)/(m - n) for some nonnegative coprime integers m, n.
%e 1169341 belongs to this sequence since 1169341^2 = (808^5 - 627^5) / (808 - 627) with gcd(808, 627) = 1.
%Y Cf. A156668, A156669.
%K nonn
%O 1,2
%A _Max Alekseyev_, Feb 13 2009