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!)

A157004 as a simple table

n a(n)
0 1
1 2
2 6
3 18
4 58
5 192
6 650
7 2232
8 7746
9 27096
10 95376
11 337404
12 1198546
13 4272308
14 15273888
15 54744268
16 196646922
17 707747988
18 2551624304
19 9213416524
20 33313656888
21 120604436624
22 437112790668
23 1585877246424
24 5759085911154

[1,2,6,18,58,192,650,2232,7746,27096,95376,337404,
 1198546,4272308,15273888,54744268,196646922,
 707747988,2551624304,9213416524,33313656888,
 120604436624,437112790668,1585877246424,
 5759085911154]

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 July 16 08:10 EDT 2024. Contains 374345 sequences. (Running on oeis4.)