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!)

A218516 as a simple table

n a(n)
1 4
2 36
3 236
4 1528
5 9858
6 63592
7 410218
8 2646208
9 17069998
10 110114102
11 710317326
12 4582071648
13 29557748082
14 190669317026
15 1229957991200
16 7934137929012
17 51181052626992
18 330155610028966
19 2129747655406998
20 13738446168804038

[4,36,236,1528,9858,63592,410218,2646208,17069998,
 110114102,710317326,4582071648,29557748082,
 190669317026,1229957991200,7934137929012,
 51181052626992,330155610028966,2129747655406998,
 13738446168804038]

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 September 6 15:39 EDT 2024. Contains 375715 sequences. (Running on oeis4.)