The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)

A263751 as a simple table

n a(n)
1 1
2 2
3 6
4 24
5 120
6 720
7 2400
8 5424
9 7872
10 13426
11 32600
12 93648
13 264004
14 715068
15 1827984
16 4478968
17 10877260
18 27046668
19 68563740
20 175638421
21 449813745
22 1144182205
23 2889559249
24 7280740314
25 18358582526
26 46400942072
27 117521209250
28 297858254334

[1,2,6,24,120,720,2400,5424,7872,13426,32600,
 93648,264004,715068,1827984,4478968,10877260,
 27046668,68563740,175638421,449813745,1144182205,
 2889559249,7280740314,18358582526,46400942072,
 117521209250,297858254334]

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 June 12 19:14 EDT 2024. Contains 373360 sequences. (Running on oeis4.)