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!)

A321646 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 15
5 39
6 108
7 290
8 781
9 2050
10 5434
11 14210
12 37150
13 96347
14 248250
15 636278
16 1620721
17 4108340
18 10361338
19 26016060
20 65019655
21 161831393
22 401090324
23 990229108
24 2435316984
25 5967684036
26 14572351628
27 35464928382
28 86033632280
29 208062026930
30 501676936146

[1,1,2,6,15,39,108,290,781,2050,5434,14210,37150,
 96347,248250,636278,1620721,4108340,10361338,
 26016060,65019655,161831393,401090324,990229108,
 2435316984,5967684036,14572351628,35464928382,
 86033632280,208062026930,501676936146]

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 16 15:31 EDT 2024. Contains 375976 sequences. (Running on oeis4.)