login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A252172 as a simple table

n a(n)
1 4
2 132
3 264
4 1872
5 6820
6 31420
7 123826
8 515268
9 2058802
10 8332796
11 33350162
12 133891940
13 535789038
14 2145632584
15 8584207782
16 34349419412
17 137408677592
18 549699224224
19 2198863697876
20 8795786194236
21 35183533311476
22 140735839290104

[4,132,264,1872,6820,31420,123826,515268,2058802,
 8332796,33350162,133891940,535789038,2145632584,
 8584207782,34349419412,137408677592,549699224224,
 2198863697876,8795786194236,35183533311476,
 140735839290104]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 20 14:53 EST 2018. Contains 317402 sequences. (Running on oeis4.)