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!)

A297871 as a simple table

n a(n)
1 0
2 3
3 0
4 3
5 0
6 3
7 6
8 23
9 68
10 205
11 572
12 1553
13 4208
14 11405
15 30988
16 84553
17 231176
18 632915
19 1734004
20 4751591
21 13021550
22 35685855
23 97797264
24 268015939
25 734511376
26 2012982445
27 5516772882
28 15119337301
29 41436399090
30 113561805901
31 311231201784

[0,3,0,3,0,3,6,23,68,205,572,1553,4208,11405,
 30988,84553,231176,632915,1734004,4751591,
 13021550,35685855,97797264,268015939,734511376,
 2012982445,5516772882,15119337301,41436399090,
 113561805901,311231201784]

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 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)