login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

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

A057426 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 5
9 31
10 185
11 947
12 4564
13 21004
14 93833
15 410295
16 1765378
17 7504024
18 31591157
19 131982937
20 547971412
21 2263443059
22 9309302775
23 38149945673
24 155858903955
25 635066943350
26 2581736396181

[0,0,0,0,0,0,0,5,31,185,947,4564,21004,93833,
 410295,1765378,7504024,31591157,131982937,
 547971412,2263443059,9309302775,38149945673,
 155858903955,635066943350,2581736396181]

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 January 20 08:18 EST 2020. Contains 331081 sequences. (Running on oeis4.)