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!)

A283409 as a simple table

n a(n)
1 4
2 16
3 61
4 236
5 912
6 3525
7 13624
8 52656
9 203513
10 786568
11 3040048
12 11749641
13 45411804
14 175514464
15 678355061
16 2621810068
17 10133171296
18 39164225421
19 151367869744
20 585029621920
21 2261111681777
22 8739089177552
23 33776164295072

[4,16,61,236,912,3525,13624,52656,203513,786568,
 3040048,11749641,45411804,175514464,678355061,
 2621810068,10133171296,39164225421,151367869744,
 585029621920,2261111681777,8739089177552,
 33776164295072]

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 25 11:16 EDT 2024. Contains 371967 sequences. (Running on oeis4.)