login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A290438
as a simple table
n
a(n)
1
1
2
1
3
3
4
3
5
12
6
20
7
39
8
64
9
116
10
210
11
438
12
966
13
2089
14
4155
15
8032
16
15657
17
30325
18
58379
19
112885
[1,1,3,3,12,20,39,64,116,210,438,966,2089,4155, 8032,15657,30325,58379,112885]