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!)

A155117 as a simple table

n a(n)
0 1
1 3
2 15
3 72
4 348
5 1680
6 8112
7 39168
8 189120
9 913152
10 4409088
11 21288960
12 102792192
13 496324608
14 2396467200
15 11571167232
16 55870537728
17 269766819840
18 1302549430272
19 6289265000448
20 30367257722880
21 146626090893312

[1,3,15,72,348,1680,8112,39168,189120,913152,
 4409088,21288960,102792192,496324608,2396467200,
 11571167232,55870537728,269766819840,
 1302549430272,6289265000448,30367257722880,
 146626090893312]

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 24 19:39 EDT 2024. Contains 371963 sequences. (Running on oeis4.)