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!)

A001572 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 3
5 5
6 17
7 41
8 127
9 365
10 1119
11 3413
12 10685
13 33561
14 106827
15 342129
16 1104347
17 3584649
18 11701369
19 38374065
20 126395259
21 417908329
22 1386618307
23 4615388353
24 15407188529
25 51569669429
26 173033992311
27 581905285089
28 1961034571967

[1,1,1,1,3,5,17,41,127,365,1119,3413,10685,33561,
 106827,342129,1104347,3584649,11701369,38374065,
 126395259,417908329,1386618307,4615388353,
 15407188529,51569669429,173033992311,581905285089,
 1961034571967]

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 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)