login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A052071 a(n)^3 is the smallest cube whose digits occur with the same frequency n. 6
0, 11, 888, 2830479, 120023142, 6351783105, 267745815817 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..7.

Patrick De Geest, Numbers whose digits occur with same frequency

EXAMPLE

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

MATHEMATICA

Table[i = 0;

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

i, {n, 7}] (* Robert Price, Oct 12 2019 *)

CROSSREFS

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

Sequence in context: A238715 A162448 A024150 * A176709 A336800 A083816

Adjacent sequences:  A052068 A052069 A052070 * A052072 A052073 A052074

KEYWORD

nonn,base,more,nice

AUTHOR

Patrick De Geest, Jan 15 2000

EXTENSIONS

Offset corrected by Michel Marcus, Aug 12 2015

a(7) from Giovanni Resta, Aug 19 2018

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 20 13:06 EST 2022. Contains 350472 sequences. (Running on oeis4.)