login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A049607
as a simple table
n
a(n)
0
0
1
1
2
5
3
26
4
138
5
743
6
4043
7
22180
8
122468
9
679757
10
3789297
11
21199998
12
118973550
[0,1,5,26,138,743,4043,22180,122468,679757, 3789297,21199998,118973550]