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!)
A291642 Numbers k such that 3 is the smallest decimal digit of k^3. 7
7, 15, 33, 46, 76, 77, 95, 96, 157, 167, 175, 179, 186, 197, 207, 213, 215, 326, 327, 332, 335, 353, 355, 379, 389, 427, 429, 437, 454, 457, 464, 714, 764, 775, 813, 816, 826, 859, 883, 922, 927, 942, 957, 1526, 1529, 1553, 1557, 1636, 1692, 1695, 1753, 1782 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

EXAMPLE

33 is in the sequence because 33^3 = 35937, the smallest decimal digit of which is 3.

MAPLE

filter:= n -> min(convert(n^3, base, 10))=3:

select(filter, [$1..10000]); # Robert Israel, Aug 29 2017

PROG

(PARI) select(k->vecmin(digits(k^3))==3, vector(5000, k, k))

CROSSREFS

Cf. A291639, A291640, A291641, A291643, A291644.

Sequence in context: A233297 A159695 A014001 * A271995 A174792 A063592

Adjacent sequences:  A291639 A291640 A291641 * A291643 A291644 A291645

KEYWORD

nonn,base

AUTHOR

Colin Barker, Aug 28 2017

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 July 29 17:41 EDT 2021. Contains 346346 sequences. (Running on oeis4.)