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!)
A253855 a(n) = H_n(4,2) where H_n is the n-th hyperoperator. 3
3, 6, 8, 16, 256 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
COMMENTS
See A054871 for definitions and key links.
This sequence is also a(0)=0, a(1)=1, a(n)=H_{n-1)(4,4) for n>1.
LINKS
EXAMPLE
a(0) = H_0(4,2) = 2+1 = 3
a(1) = H_1(4,2) = 4+2 = 6.
a(2) = H_2(4,2) = 4*2 = 8.
a(3) = H_3(4,2) = 4^2 = 16.
a(4) = H_4(4,2) = 4^^2 = 4^4 = 256.
a(5) = H_5(4,2) = 4^^^2 = 4^^4 = 4^4^4^4 = 4^4^256 = ...
CROSSREFS
Sequence in context: A032912 A123208 A179652 * A298860 A068979 A101060
KEYWORD
nonn,less,bref
AUTHOR
Natan Arie Consigli, May 02 2015
EXTENSIONS
First term corrected and hyperoperator notation implemented by Danny Rorabaugh, Oct 20 2015
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 April 21 07:13 EDT 2024. Contains 371850 sequences. (Running on oeis4.)