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!)

A247195 as a simple table

n a(n)
0 0
1 1
2 1
3 3
4 9
5 33
6 129
7 531
8 2265
9 9921
10 44361
11 201651
12 929073
13 4328865
14 20362137
15 96562659
16 461169873
17 2216134401
18 10707788721
19 51988771107
20 253515373305
21 1241069449377
22 6097106216529
23 30050252046195
24 148541591990505
25 736237012296897

[0,1,1,3,9,33,129,531,2265,9921,44361,201651,
 929073,4328865,20362137,96562659,461169873,
 2216134401,10707788721,51988771107,253515373305,
 1241069449377,6097106216529,30050252046195,
 148541591990505,736237012296897]

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 17:39 EDT 2024. Contains 371797 sequences. (Running on oeis4.)