A164818 - OEIS

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A164818

Integer average digit of squares.

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

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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);