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!)

A115390 as a simple table

n a(n)
0 0
1 0
2 1
3 4
4 12
5 34
6 96
7 272
8 772
9 2192
10 6224
11 17672
12 50176
13 142464
14 404496
15 1148480
16 3260864
17 9258528
18 26287616
19 74638080
20 211918912
21 601698560
22 1708394752
23 4850622592
24 13772308480
25 39103533056
26 111026143488
27 315235058688

[0,0,1,4,12,34,96,272,772,2192,6224,17672,50176,
 142464,404496,1148480,3260864,9258528,26287616,
 74638080,211918912,601698560,1708394752,
 4850622592,13772308480,39103533056,111026143488,
 315235058688]

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 September 25 00:48 EDT 2020. Contains 337333 sequences. (Running on oeis4.)