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!)

A268940 as a simple table

n a(n)
1 5
2 25
3 120
4 565
5 2615
6 11950
7 54045
8 242365
9 1079240
10 4777225
11 21038595
12 92244790
13 402898865
14 1753806625
15 7611458520
16 32945585965
17 142262759615
18 612991045150
19 2636186279445
20 11317111447765
21 48506655275240
22 207603081203425

[5,25,120,565,2615,11950,54045,242365,1079240,
 4777225,21038595,92244790,402898865,1753806625,
 7611458520,32945585965,142262759615,612991045150,
 2636186279445,11317111447765,48506655275240,
 207603081203425]

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 October 17 16:06 EDT 2021. Contains 348065 sequences. (Running on oeis4.)