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!)
A067500 Powers of 3 with digit sum also a power of 3. 13
1, 3, 9, 27, 81, 243, 19683, 59049, 177147, 1594323, 43046721, 129140163, 10460353203, 7625597484987, 617673396283947, 50031545098999707, 150094635296999121, 4052555153018976267 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n) = 3^A118872(n).

LINKS

Table of n, a(n) for n=1..18.

MATHEMATICA

With[{l3s=3^Range[0, 200]}, Select[l3s, MemberQ[l3s, Total[IntegerDigits[ #]]]&]] (* Harvey P. Dale, May 20 2011 *)

CROSSREFS

Cf. A067499.

Cf. A004166, A000244.

Sequence in context: A050733 A238939 A079846 * A273898 A078226 A083591

Adjacent sequences:  A067497 A067498 A067499 * A067501 A067502 A067503

KEYWORD

base,easy,nonn

AUTHOR

Amarnath Murthy, Feb 11 2002

EXTENSIONS

More terms from Harvey P. Dale, Mar 02 2002

Offset corrected by Reinhard Zumkeller, May 14 2011

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 October 19 18:19 EDT 2021. Contains 348091 sequences. (Running on oeis4.)