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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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Patrick De Geest, Numbers whose digits occur with same frequency 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 Cf. A052070, A045540, A052046, A052049, A052050, A052071. Sequence in context: A188762 A188991 A189201 * A346926 A174499 A048919 Adjacent sequences:  A052066 A052067 A052068 * A052070 A052071 A052072 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

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Last modified January 20 12:55 EST 2022. Contains 350472 sequences. (Running on oeis4.)