login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A000449 as a simple table

n a(n)
3 1
4 0
5 10
6 40
7 315
8 2464
9 22260
10 222480
11 2447445
12 29369120
13 381798846
14 5345183480
15 80177752655
16 1282844041920
17 21808348713320
18 392550276838944
19 7458455259940905
20 149169105198816960
21 3132551209175157490
22 68916126601853463240

[1,0,10,40,315,2464,22260,222480,2447445,29369120,
 381798846,5345183480,80177752655,1282844041920,
 21808348713320,392550276838944,7458455259940905,
 149169105198816960,3132551209175157490,
 68916126601853463240]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 30 08:43 EDT 2020. Contains 334712 sequences. (Running on oeis4.)