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!)

A027156 as a simple table

n a(n)
0 4
1 20
2 88
3 416
4 2464
5 12320
6 73344
7 373248
8 2286080
9 11768320
10 72968192
11 378533888
12 2368397312
13 12353986560
14 77788119040
15 407431675904
16 2577750163456
17 13544806547456
18 86015627231232
19 453128543010816
20 2886172831383552

[4,20,88,416,2464,12320,73344,373248,2286080,
 11768320,72968192,378533888,2368397312,
 12353986560,77788119040,407431675904,
 2577750163456,13544806547456,86015627231232,
 453128543010816,2886172831383552]

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 23 06:04 EDT 2024. Contains 371906 sequences. (Running on oeis4.)