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!)

A001189 as a simple table

n a(n)
1 0
2 1
3 3
4 9
5 25
6 75
7 231
8 763
9 2619
10 9495
11 35695
12 140151
13 568503
14 2390479
15 10349535
16 46206735
17 211799311
18 997313823
19 4809701439
20 23758664095
21 119952692895
22 618884638911
23 3257843882623
24 17492190577599
25 95680443760575
26 532985208200575
27 3020676745975551

[0,1,3,9,25,75,231,763,2619,9495,35695,140151,
 568503,2390479,10349535,46206735,211799311,
 997313823,4809701439,23758664095,119952692895,
 618884638911,3257843882623,17492190577599,
 95680443760575,532985208200575,3020676745975551]

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 March 28 15:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)