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%I #14 Jul 27 2018 08:46:50
%S 36,3136,343396,1336336,133333209,3333330225,313341333361,
%T 1433333333961,43333334833636,1333333832344336,123133353336333376,
%U 3233633330337433321,3333433332336331536,2333303333385023333376,133333533332333233936
%N Smallest square containing exactly n 3's.
%C a(20) > 10^28. - _Giovanni Resta_, Jul 27 2018
%H Giovanni Resta, <a href="/A036510/b036510.txt">Table of n, a(n) for n = 1..19</a> (first 17 terms from Jon E. Schoenfield)
%t a[n_] := Block[{k=1}, While[DigitCount[k^2, 10, 3] != n, k++]; k^2]; Array[a, 6] (* _Giovanni Resta_, Jul 27 2018 *)
%Y Cf. A048348. - _Jon E. Schoenfield_, Jan 24 2009
%K nonn,base
%O 1,1
%A _David W. Wilson_
%E More terms from _Jon E. Schoenfield_, Jan 14 2009
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