login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A297345
as a simple table
n
a(n)
0
0
1
1
2
2
3
7
4
24
5
85
6
285
7
1143
8
6268
9
216784
10
1059813
11
6100794
12
226303113
[0,1,2,7,24,85,285,1143,6268,216784,1059813, 6100794,226303113]