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!)

A228626 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 1
6 2
7 4
8 16
9 60
10 186
11 433
12 2215
13 11788
14 76539
15 414240
16 2202215
17 9655287
18 69748712
19 444195809
20 3703859949
21 26688275292
22 201673532931
23 1265944917365
24 11801735916539
25 92511897525830
26 753795624276096
27 5237677221537738
28 41074291450736424
29 280906738160126067

[0,0,0,0,1,2,4,16,60,186,433,2215,11788,76539,
 414240,2202215,9655287,69748712,444195809,
 3703859949,26688275292,201673532931,1265944917365,
 11801735916539,92511897525830,753795624276096,
 5237677221537738,41074291450736424,
 280906738160126067]

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 8 15:12 EDT 2024. Contains 375022 sequences. (Running on oeis4.)