login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A031997 Odd numbers which when cubed give number composed just of the digits 0, 1, 2, 3. 1
0, 1, 11, 101, 1001, 10001, 100001, 684917, 1000001, 10000001, 100000001, 1000000001 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

COMMENTS

Note that 684917 (whose cube is 321302302131323213) so far is the only entry not of the form 10^x + 1.

MATHEMATICA

Do[ If[ Union[ IntegerDigits[ n^3 ] ] [ [ -1 ] ] < 4, Print[ n ] ], {n, 0, 10^9} ]

CROSSREFS

Cf. A030175.

Sequence in context: A171750 A191420 A118937 * A056810 A116098 A116129

Adjacent sequences:  A031994 A031995 A031996 * A031998 A031999 A032000

KEYWORD

nonn,base

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 23 2001

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 17 13:28 EST 2012. Contains 206031 sequences.