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!)

A273347 as a simple table

n a(n)
2 1
3 4
4 16
5 60
6 218
7 778
8 2744
9 9600
10 33391
11 115638
12 399137
13 1374050
14 4720272
15 16187632
16 55434424
17 189607406
18 647872199
19 2211794804
20 7545239986
21 25722676402
22 87641357150
23 298456587038
24 1015914399813
25 3456670564220
26 11757143968393
27 39976448714086
28 135887220346719

[1,4,16,60,218,778,2744,9600,33391,115638,399137,
 1374050,4720272,16187632,55434424,189607406,
 647872199,2211794804,7545239986,25722676402,
 87641357150,298456587038,1015914399813,
 3456670564220,11757143968393,39976448714086,
 135887220346719]

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 March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)