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!)

A018026 as a simple table

n a(n)
0 1
1 3
2 7
3 17
4 44
5 113
6 289
7 744
8 1911
9 4913
10 12633
11 32483
12 83521
13 214757
14 552199
15 1419857
16 3650853
17 9387369
18 24137569
19 62064487
20 159585273
21 410338673
22 1055096276
23 2712949631
24 6975757441
25 17936636689
26 46120143717
27 118587876497
28 304922823712

[1,3,7,17,44,113,289,744,1911,4913,12633,32483,
 83521,214757,552199,1419857,3650853,9387369,
 24137569,62064487,159585273,410338673,1055096276,
 2712949631,6975757441,17936636689,46120143717,
 118587876497,304922823712]

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 05:56 EDT 2024. Contains 371964 sequences. (Running on oeis4.)