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!)

A303307 as a simple table

n a(n)
0 1
1 2
2 6
3 20
4 54
5 156
6 444
7 1192
8 3174
9 8620
10 22516
11 58392
12 151996
13 387352
14 984888
15 2507088
16 6270854
17 15659724
18 39067588
19 96454072
20 237663444
21 584266696
22 1425921992
23 3470869296
24 8431325916
25 20380759544
26 49122457608
27 118178637040
28 283150466232
29 676768288176

[1,2,6,20,54,156,444,1192,3174,8620,22516,58392,
 151996,387352,984888,2507088,6270854,15659724,
 39067588,96454072,237663444,584266696,1425921992,
 3470869296,8431325916,20380759544,49122457608,
 118178637040,283150466232,676768288176]

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 March 8 11:15 EST 2021. Contains 341948 sequences. (Running on oeis4.)