%I A036509
%S A036509 25,225,22201,2002225,21022225,212722225,11222224225,132922222225,12222722202201,
               22222220262025,
%T A036509 1222522204222225,22292262226224225,2222262262926922225,22226224222205212225,
               2222222222222640225,
%U A036509 22222262422274682222225,1222212242622225512222224,2220022223125222222222201
%N A036509 Smallest square containing exactly n 2's.
%F A036509 a(n) = A048347(n)^2 [From Max Alekseyev (maxale(AT)gmail.com), Oct 20 
               2008]
%Y A036509 Cf. A048347. [From Jon E. Schoenfield (jonscho(AT)hiwaay.net), Jan 24 
               2009]
%Y A036509 Sequence in context: A058426 A048384 A030485 this_sequence A034981 A053919 
               A053927
%Y A036509 Adjacent sequences: A036506 A036507 A036508 this_sequence A036510 A036511 
               A036512
%K A036509 nonn,base
%O A036509 1,1
%A A036509 David W. Wilson (davidwwilson(AT)comcast.net)
%E A036509 a(13) = 2222262262926922225 from Max Alekseyev (maxale(AT)gmail.com), 
               Oct 20 2008
%E A036509 a(14) = 22226224222205212225 from Max Alekseyev (maxale(AT)gmail.com), 
               Nov 10 2008
%E A036509 a(15) = 2222222222222640225 from Max Alekseyev (maxale(AT)gmail.com), 
               Dec 05 2008
%E A036509 a(16) = 22222262422274682222225, a(17) = 1222212242622225512222224 and 
               a(18) = 2220022223125222222222201 from Jon E. Schoenfield (jonscho(AT)hiwaay.net), 
               Dec 25 2008