login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A241784
as a simple table
n
a(n)
1
1
2
1
3
2
4
6
5
13
6
44
7
144
8
577
9
2457
10
12499
11
72394
12
508942
13
4408389
14
49858593
15
769196039
16
16729819397
[1,1,2,6,13,44,144,577,2457,12499,72394,508942, 4408389,49858593,769196039,16729819397]