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!)

A019222 as a simple table

n a(n)
3 2
4 0
5 0
6 0
7 0
8 0
9 26
10 86
11 228
12 424
13 1040
14 2192
15 5632
16 13820
17 37462
18 94070
19 244632
20 612400
21 1576680
22 3994116
23 10322016
24 26512176
25 69006942
26 178963650
27 467609932
28 1219902008
29 3198150306
30 8381973582
31 22048632000

[2,0,0,0,0,0,26,86,228,424,1040,2192,5632,13820,
 37462,94070,244632,612400,1576680,3994116,
 10322016,26512176,69006942,178963650,467609932,
 1219902008,3198150306,8381973582,22048632000]

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 07:46 EDT 2024. Contains 371235 sequences. (Running on oeis4.)