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!)

A056884 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 5
6 20
7 84
8 311
9 1165
10 4276
11 15802
12 58280
13 216070
14 803116
15 2997360
16 11221443
17 42147842
18 158749808
19 599513836
20 2269390757
21 8609258335
22 32725209938
23 124621150623
24 475367241264
25 1816100804241
26 6948222137523
27 26618662003342
28 102102765921611
29 392095326233619
30 1507357249572269
31 5800716924062537
32 22344021033377558

[0,0,0,1,5,20,84,311,1165,4276,15802,58280,216070,
 803116,2997360,11221443,42147842,158749808,
 599513836,2269390757,8609258335,32725209938,
 124621150623,475367241264,1816100804241,
 6948222137523,26618662003342,102102765921611,
 392095326233619,1507357249572269,5800716924062537,
 22344021033377558]

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 23 14:32 EDT 2024. Contains 371914 sequences. (Running on oeis4.)