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A164818 Integer average digit of squares. 2
1, 4, 9, 5, 3, 3, 3, 3, 6, 6, 3, 4, 4, 4, 4, 4, 4, 5, 5, 2, 2, 5, 5, 5, 5, 2, 5, 2, 5, 5, 5, 5, 5, 2, 5, 5, 5, 5, 5, 5, 5, 5, 5, 8, 3, 3, 3, 3, 3, 3, 3, 3, 6, 3, 3, 3, 6, 3, 6, 3, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 6, 6, 3, 6, 3, 3, 3, 3, 3, 3, 3, 6, 3, 3, 3, 3, 3, 6, 6, 6, 6, 3, 3, 3, 6, 3, 3, 3, 3, 6, 6, 3, 6 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n)= average digit of squares of A164817(n).

The only n for which a(n) = 9 is 3.  a(44) = a(26165) = 8. - Robert Israel, Feb 24 2016

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

MAPLE

f:= proc(n) local L, r;

L:= convert(n^2, base, 10);

r:= convert(L, `+`)/nops(L);

if r::integer then r else NULL fi

end proc:

map(f, [$1..1000]); # Robert Israel, Feb 24 2016

CROSSREFS

Cf. A004159, A164817.

Sequence in context: A121305 A200396 A011513 * A065796 A070434 A011003

Adjacent sequences:  A164815 A164816 A164817 * A164819 A164820 A164821

KEYWORD

base,nonn

AUTHOR

Zak Seidov, Aug 27 2009

STATUS

approved

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Last modified October 22 00:52 EDT 2019. Contains 328315 sequences. (Running on oeis4.)