login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A026679 as a simple table

n a(n)
0 1
1 3
2 8
3 18
4 41
5 87
6 190
7 396
8 851
9 1761
10 3754
11 7740
12 16419
13 33777
14 71410
15 146676
16 309319
17 634605
18 1335680
19 2737830
20 5753393
21 11784519
22 24732602
23 50628768
24 106142095
25 217168749
26 454874296
27 930285390
28 1947021505

[1,3,8,18,41,87,190,396,851,1761,3754,7740,16419,
 33777,71410,146676,309319,634605,1335680,2737830,
 5753393,11784519,24732602,50628768,106142095,
 217168749,454874296,930285390,1947021505]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 20 12:54 EDT 2021. Contains 345164 sequences. (Running on oeis4.)