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!)

A280917 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 7
5 14
6 26
7 50
8 95
9 180
10 343
11 652
12 1240
13 2359
14 4486
15 8532
16 16227
17 30862
18 58697
19 111636
20 212321
21 403814
22 768015
23 1460691
24 2778094
25 5283667
26 10049027
27 19112282
28 36349721
29 69133673
30 131485594
31 250072951
32 475614693
33 904573387
34 1720411555
35 3272057256
36 6223138101
37 11835809946
38 22510571803
39 42812941849

[1,1,2,4,7,14,26,50,95,180,343,652,1240,2359,4486,
 8532,16227,30862,58697,111636,212321,403814,
 768015,1460691,2778094,5283667,10049027,19112282,
 36349721,69133673,131485594,250072951,475614693,
 904573387,1720411555,3272057256,6223138101,
 11835809946,22510571803,42812941849]

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 25 12:33 EDT 2024. Contains 371969 sequences. (Running on oeis4.)