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!)
A271553 a(n) = H_{n-1}(n,n). 2
1, 2, 4, 9, 64 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

H is the hyperoperation function see A054871 for more information.

This sequence is a shifted version of the weak Ackermann numbers H_n(n,n).

LINKS

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

CROSSREFS

Cf. A189896 (H_n(n,n)), A054871.

Sequence in context: A162116 A162117 A162109 * A067603 A269739 A065299

Adjacent sequences:  A271550 A271551 A271552 * A271554 A271555 A271556

KEYWORD

nonn,bref

AUTHOR

Natan Arie Consigli, Apr 09 2016

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 June 21 06:24 EDT 2021. Contains 345358 sequences. (Running on oeis4.)