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!)

A255839 as a simple table

n a(n)
0 1
1 1
2 9
3 18
4 64
5 172
6 477
7 1368
8 3681
9 10485
10 28701
11 80829
12 225090
13 632160
14 1778553
15 5010948
16 14181849
17 40161357
18 114151716
19 324873027
20 926918784
21 2649218580
22 7585705665
23 21758756931
24 62508649059
25 179859399129
26 518234494662
27 1495275239115
28 4319808231645
29 12495043092609
30 36183457564425

[1,1,9,18,64,172,477,1368,3681,10485,28701,80829,
 225090,632160,1778553,5010948,14181849,40161357,
 114151716,324873027,926918784,2649218580,
 7585705665,21758756931,62508649059,179859399129,
 518234494662,1495275239115,4319808231645,
 12495043092609,36183457564425]

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 12:22 EDT 2024. Contains 371937 sequences. (Running on oeis4.)