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A039820 Numbers whose square contains the same digit more than 2/3 of the time and does not end in 0. 1
1, 2, 3, 38, 212, 2538, 6888, 66592, 100001, 100002, 100003, 200001, 200002, 210771, 300001, 1000001, 1000002, 1000003, 1000004, 1000005, 1055041, 2000001, 2000002, 2000003, 2000005, 2059962, 2131888, 2356384, 3000001, 3000002 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Giovanni Resta, Table of n, a(n) for n = 1..6500

EXAMPLE

3082207^2 = 9499999990849.

MATHEMATICA

Select[Range[300000], Mod[#, 10] > 0 && Max@ DigitCount[#^2] > (2/3) IntegerLength[#^2] &] (* Giovanni Resta, Jul 29 2018 *)

CROSSREFS

Sequence in context: A119448 A041329 A060813 * A153745 A076724 A080393

Adjacent sequences:  A039817 A039818 A039819 * A039821 A039822 A039823

KEYWORD

base,hard,nonn

AUTHOR

Erich Friedman, Apr 29 2001

STATUS

approved

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Last modified August 22 00:43 EDT 2019. Contains 326169 sequences. (Running on oeis4.)