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

 

Logo

Annual appeal: Please make a donation to keep the OEIS running! Over 6000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A069026 Smallest power of 4 with digit sum n, or 0 if no such number exists. 0
1, 0, 0, 4, 0, 0, 16, 0, 0, 64, 0, 0, 256, 0, 0, 0, 0, 0, 4096, 0, 0, 16384, 0, 0, 65536, 0, 0, 0, 0, 0, 1048576, 0, 0, 0, 0, 0, 16777216, 0, 0, 67108864, 0, 0, 268435456, 0, 0, 4398046511104, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4294967296, 0, 0, 17179869184, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

a(3k)=0. If any other zero terms are really nonzero, their value is greater than 4^31. - Larry Reeves (larryr(AT)acm.org), Dec 21 2002

LINKS

Table of n, a(n) for n=1..63.

CROSSREFS

Cf. A069025.

Sequence in context: A049207 A092219 A262227 * A133851 A062685 A192016

Adjacent sequences:  A069023 A069024 A069025 * A069027 A069028 A069029

KEYWORD

nonn,base

AUTHOR

Amarnath Murthy, Apr 02 2002

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), Dec 21 2002

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 12 06:05 EST 2017. Contains 295937 sequences.