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!)

A261497 as a simple table

n a(n)
0 1
1 1
2 4
3 19
4 116
5 776
6 5620
7 42288
8 328756
9 2615104
10 21191904
11 174303163
12 1451430692
13 12211799224
14 103655949072
15 886568153744
16 7633233556276
17 66105170315084
18 575445692499952
19 5032380942945322
20 44191451788248416
21 389514699013012242
22 3444925385336301684

[1,1,4,19,116,776,5620,42288,328756,2615104,
 21191904,174303163,1451430692,12211799224,
 103655949072,886568153744,7633233556276,
 66105170315084,575445692499952,5032380942945322,
 44191451788248416,389514699013012242,
 3444925385336301684]

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 August 17 12:21 EDT 2024. Contains 375210 sequences. (Running on oeis4.)