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!)

A078904 as a simple table

n a(n)
0 0
1 3
2 18
3 81
4 336
5 1359
6 5454
7 21837
8 87372
9 349515
10 1398090
11 5592393
12 22369608
13 89478471
14 357913926
15 1431655749
16 5726623044
17 22906492227
18 91625968962
19 366503875905
20 1466015503680
21 5864062014783
22 23456248059198
23 93824992236861

[0,3,18,81,336,1359,5454,21837,87372,349515,
 1398090,5592393,22369608,89478471,357913926,
 1431655749,5726623044,22906492227,91625968962,
 366503875905,1466015503680,5864062014783,
 23456248059198,93824992236861]

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 August 26 20:09 EDT 2024. Contains 375462 sequences. (Running on oeis4.)