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!)

A120656 as a simple table

n a(n)
0 0
1 4
2 18
3 50
4 166
5 474
6 1478
7 4330
8 13206
9 39194
10 118438
11 353610
12 1064246
13 3185914
14 9571398
15 28686890
16 86115286
17 258236634
18 774928358
19 2324348170
20 6973918326
21 20920007354
22 62763517318
23 188283561450
24 564864665366
25 1694566034074

[0,4,18,50,166,474,1478,4330,13206,39194,118438,
 353610,1064246,3185914,9571398,28686890,86115286,
 258236634,774928358,2324348170,6973918326,
 20920007354,62763517318,188283561450,564864665366,
 1694566034074]

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 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)