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Numbers n with property that average digit of n^2 is less than 1.
1

%I #3 Mar 30 2012 17:28:25

%S 101,1001,10001,50001,100001,100002,100005,100011,100101,100549,

%T 101001,110001,114499,200001,316261,375501,500001,1000001,1000002,

%U 1000005,1000011,1000101,1001001,1010001,1100001,2000001,5000001,5000002

%N Numbers n with property that average digit of n^2 is less than 1.

%C No trailing zeros in n.

%C Other terms < 10^8:

%C 5000011,5000101,5001001,5010001,5100001,5500001,6000001,10000001,10000002,

%C 10000005,10000006,10000011,10000015,10000051,10000055,10000101,10000105,

%C 10000501,10001001,10001005,10005001,10010001,10010005,10050001,10100001,

%C 10100005,10500001,11000001,11000005,15000001,17320511,20000001,20000005,

%C 44989999,48989999,50000001,50000002,50000011,50000101,50001001,50010001,

%C 50100001,51000001,55000001,60000001.

%Y Cf. A164770 (s=2), A164771 (s=1), A164772 (s=8), A164773 (s=7), A164774 (s=5). A164776 (s=4). A164779 (s=6), A164782(s=3), A164841(s<8).

%K base,nonn,less

%O 1,1

%A _Zak Seidov_, Aug 28 2009

%E Edited by _Charles R Greathouse IV_, Mar 23 2010