login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

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

A071973 as a simple table

n a(n)
0 0
1 2
2 4
3 11
4 25
5 62
6 162
7 433
8 1175
9 3229
10 9042
11 25549
12 73050
13 210356
14 610041
15 1779830
16 5218745
17 15372304
18 45455747
19 134882577
20 401480918
21 1198344171
22 3585783711
23 10754085805
24 32319203663
25 97312548674
26 293515297707

[0,2,4,11,25,62,162,433,1175,3229,9042,25549,
 73050,210356,610041,1779830,5218745,15372304,
 45455747,134882577,401480918,1198344171,
 3585783711,10754085805,32319203663,97312548674,
 293515297707]

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

License Agreements, Terms of Use, Privacy Policy .

Last modified December 6 14:49 EST 2016. Contains 278781 sequences.