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A164774
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Numbers n with property that average digit of n^2 is s=5.
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5
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8, 113, 122, 157, 158, 166, 176, 184, 193, 194, 212, 221, 238, 256, 257, 266, 274, 275, 283, 284, 292, 311, 3283, 3314, 3386, 3391, 3413, 3458, 3463, 3517, 3544, 3562, 3593, 3674, 3683, 3697, 3724, 3733, 3737, 3764, 3814, 3827, 3836, 3859, 3863, 3872, 3917
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..47.
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EXAMPLE
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8^2=64 and (6+4)/2=5
113^2=12769 and (1+2+7+6+9)/5=5.
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PROG
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(PARI) dsum(n)={my(s=0); while(n>9, s+=n%10; n\=10); s+n}; for(n=1, 1e6, if(dsum(n^2)/#Str(n^2)==5, print1(n", ")))
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CROSSREFS
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A164770 (s=2), A164771 (s=1), A164772 (s=8), A164773 (s=7).
Sequence in context: A010041 A099703 A296467 * A259590 A155460 A064090
Adjacent sequences: A164771 A164772 A164773 * A164775 A164776 A164777
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KEYWORD
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nonn,base,easy
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AUTHOR
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Zak Seidov, Aug 26 2009
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EXTENSIONS
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Program by Charles R Greathouse IV, Nov 01 2009
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STATUS
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approved
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