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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A055590 a(n) = 3^(sum of a(i) where i<n). 1
0, 1, 3, 81, 35917545547686059365808220080151141317043 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..4.

FORMULA

a(n) = 3^A055591(n-1) = A055591(n)-A055591(n-1)

EXAMPLE

a(3) = 3^(0+1+3) = 3^4 = 81

CROSSREFS

Sequence in context: A183502 A325053 A134799 * A037111 A067202 A203494

Adjacent sequences:  A055587 A055588 A055589 * A055591 A055592 A055593

KEYWORD

easy,nonn

AUTHOR

Henry Bottomley, May 26 2000

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 April 20 08:39 EDT 2019. Contains 322306 sequences. (Running on oeis4.)