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!)

A212915 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 10
5 26
6 76
7 232
8 764
9 2620
10 9495
11 35685
12 140031
13 567503
14 2382394
15 10290308
16 45780063
17 208852719
18 977152266
19 4674398032
20 22854255698
21 113957313538
22 579157509082
23 2995214721530
24 15752586526189
25 84145056172981
26 456221504976506
27 2508227921637772

[1,1,2,4,10,26,76,232,764,2620,9495,35685,140031,
 567503,2382394,10290308,45780063,208852719,
 977152266,4674398032,22854255698,113957313538,
 579157509082,2995214721530,15752586526189,
 84145056172981,456221504976506,2508227921637772]

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 May 18 14:00 EDT 2021. Contains 343995 sequences. (Running on oeis4.)