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

 

Logo


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

A221585 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 10
5 39
6 170
7 788
8 3885
9 20060
10 107989
11 603762
12 3496305
13 20943217
14 129663393
15 829488918
16 5483243950
17 37460570247
18 264551156875
19 1931501448369
20 14578396143512
21 113720726834349
22 916367532085433
23 7622370642112803
24 65390072935144713
25 577947703151643232

[1,1,1,3,10,39,170,788,3885,20060,107989,603762,
 3496305,20943217,129663393,829488918,5483243950,
 37460570247,264551156875,1931501448369,
 14578396143512,113720726834349,916367532085433,
 7622370642112803,65390072935144713,
 577947703151643232]

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 August 23 22:45 EDT 2019. Contains 326254 sequences. (Running on oeis4.)