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Numbers n such that n and n^(1/2) combined use different digits.
1

%I #7 Oct 26 2019 17:53:06

%S 4,9,16,49,64,81,289,324,576,841,2809,2916,3249,3481,5184,6241,7056,

%T 43681,67081,321489,651249,729316

%N Numbers n such that n and n^(1/2) combined use different digits.

%C There are exactly 22 solutions in base 10.

%Y Cf. A059930, A029783.

%K nonn,base,fini,full

%O 1,1

%A _Patrick De Geest_, Feb 15 2001