login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A052044 Numbers k such that k^3 lacks the digit zero in its decimal expansion. 9
1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 17, 18, 19, 21, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 35, 36, 38, 39, 41, 44, 45, 46, 49, 51, 53, 54, 55, 56, 57, 58, 61, 62, 64, 65, 66, 68, 71, 72, 75, 76, 77, 78, 81, 82, 83, 85, 88, 91, 92, 95, 96, 97, 98, 104, 105, 108, 111 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

This sequence is infinite since A052427 is a subsequence. - Amiram Eldar, Nov 23 2020

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 1..10000

Rémy Sigrist, Logarithmic scatterplot of (n, a(n+1)-a(n)) for n = 1..1000000

FORMULA

a(n) = A052045(n)^(1/3). - Amiram Eldar, Nov 23 2020

MATHEMATICA

Select[Range[120], DigitCount[#^3, 10, 0]==0&] (* Harvey P. Dale, Oct 24 2011 *)

PROG

(PARI) is(n)=vecmin(digits(n^3))>0 \\ Charles R Greathouse IV, Oct 11 2013

CROSSREFS

Cubes: A052045, A051750, A051751, A051832, A051833, A052427.

Squares: A052040, A052041, A052042, A052043.

Sequence in context: A188301 A332110 A178160 * A253643 A050743 A306311

Adjacent sequences:  A052041 A052042 A052043 * A052045 A052046 A052047

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Dec 15 1999

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 June 24 04:02 EDT 2021. Contains 345416 sequences. (Running on oeis4.)