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a(n)^3 is the smallest cube whose digits occur with the same frequency n.
6

%I #16 Oct 12 2019 19:09:06

%S 0,11,888,2830479,120023142,6351783105,267745815817

%N a(n)^3 is the smallest cube whose digits occur with the same frequency n.

%H Patrick De Geest, <a href="http://www.worldofnumbers.com/samedigits.htm">Numbers whose digits occur with same frequency</a>

%e 2830479^3 = 22676697737363992239 and its digits 2, 3, 6, 7 and 9 each occur four times.

%t Table[i = 0;

%t While[x = i^3; Union@DeleteCases[DigitCount[x], 0] != {n}, i++];

%t i, {n, 7}] (* _Robert Price_, Oct 12 2019 *)

%Y Cf. A052072, A052047, A052048, A052051, A052052, A052069.

%K nonn,base,more,nice

%O 1,2

%A _Patrick De Geest_, Jan 15 2000

%E Offset corrected by _Michel Marcus_, Aug 12 2015

%E a(7) from _Giovanni Resta_, Aug 19 2018