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

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A073581 Factorials successively exponentiated. 0
1, 1, 2, 36, 48708493958471199415506599153950129703565945470976 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

a(5) > 10^(10^50).

LINKS

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

FORMULA

a(n) = n!^a(n - 1) starting with a(0)=0!=1.

EXAMPLE

a(3) = 36 because 3!^(2!^(1!^0!)) = 36

MATHEMATICA

a[0] := 1 a[n_Integer] := n!^a[n - 1]

CROSSREFS

Sequence in context: A283261 A280420 A051459 * A078081 A077772 A083150

Adjacent sequences:  A073578 A073579 A073580 * A073582 A073583 A073584

KEYWORD

easy,nonn

AUTHOR

Jon Kongsvold (Jon.Kongsvold(AT)idi.ntnu.no), Aug 28 2002

EXTENSIONS

Edited by Henry Bottomley, Jul 13 2003

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 January 20 06:50 EST 2019. Contains 319325 sequences. (Running on oeis4.)