The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)

A073451 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 2
6 4
7 0
8 12
9 6
10 66
11 156
12 44
13 312
14 1484
15 2672
16 6680
17 19080
18 45024
19 168496
20 2033271
21 724543
22 2776536
23 24598062
24 26849699
25 345160845
26 4478968678
27 5094833662
28 14184530127
29 29116554754
30 125878922175

[1,1,1,1,2,4,0,12,6,66,156,44,312,1484,2672,6680,
 19080,45024,168496,2033271,724543,2776536,
 24598062,26849699,345160845,4478968678,5094833662,
 14184530127,29116554754,125878922175]

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 May 13 17:23 EDT 2024. Contains 372522 sequences. (Running on oeis4.)