login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A038383
as a simple table
n
a(n)
0
0
1
0
2
0
3
0
4
1
5
6
6
23
7
96
8
369
9
1424
10
5265
11
19224
12
68775
[0,0,0,0,1,6,23,96,369,1424,5265,19224,68775]