login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A025699 Index of 3^n within sequence of numbers of form 3^i*8^j (A025615). 2
1, 2, 4, 6, 9, 12, 16, 20, 25, 30, 36, 42, 49, 56, 64, 72, 81, 90, 100, 111, 122, 134, 146, 159, 172, 186, 200, 215, 230, 246, 262, 279, 296, 314, 332, 351, 371, 391, 412, 433, 455, 477, 500, 523, 547, 571, 596, 621, 647, 673, 700, 727, 755, 784, 813, 843, 873, 904, 935 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Not same as A002620.
The first 19 positive terms are the same, then a(20) = 111 while A002620(21) = 110. - Bernard Schott, Dec 31 2021
LINKS
FORMULA
A025615(a(n)) = 3^(n-1). - Bernard Schott, Dec 27 2021
CROSSREFS
Cf. A002620, A003586, A025615, A025728 (similar for 8^n).
Sequence in context: A076921 A002620 A087811 * A224813 A224812 A194256
KEYWORD
nonn
AUTHOR
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)