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A052069
a(n)^2 is the smallest square whose digits occur with the same frequency n.
6
0, 88, 10011, 31646191, 16431563, 667567716, 10715008859, 652246443112, 15647628653832, 781035313645040
OFFSET
1,2
EXAMPLE
31646191^2 = 1001481404808481 and its digits 0, 1, 4 and 8 each occur four times.
MATHEMATICA
Table[i = 0;
While[x = i^2; Union@DeleteCases[DigitCount[x], 0] != {n}, i++];
i, {n, 10}] (* Robert Price, Oct 12 2019 *)
CROSSREFS
KEYWORD
nonn,base,more,nice
AUTHOR
Patrick De Geest, Jan 15 2000
EXTENSIONS
2 more terms from Jon E. Schoenfield, Aug 18 2007
a(10) from Giovanni Resta, Aug 19 2018
STATUS
approved