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!)

A046209 as a simple table

n a(n)
1 1
2 1
3 2
4 6
5 16
6 38
7 104
8 270
9 726
10 1960
11 5368
12 14736
13 40880
14 113828
15 318848
16 896670
17 2532160
18 7174050
19 20390552
20 58112088
21 166037248
22 475467916
23 1364393896
24 3922624800
25 11297181456
26 32588003000
27 94143178098
28 272342710380
29 788854912240
30 2287679084096
31 6641649422408
32 19302293185470

[1,1,2,6,16,38,104,270,726,1960,5368,14736,40880,
 113828,318848,896670,2532160,7174050,20390552,
 58112088,166037248,475467916,1364393896,
 3922624800,11297181456,32588003000,94143178098,
 272342710380,788854912240,2287679084096,
 6641649422408,19302293185470]

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 18 03:01 EDT 2024. Contains 371767 sequences. (Running on oeis4.)