login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A345216
as a simple table
n
a(n)
1
1
2
2
3
4
4
11
5
26
6
80
7
251
8
929
9
3727
10
17565
11
95428
12
629795
13
5171063
14
55857762
15
831428458
16
17625946914
[1,2,4,11,26,80,251,929,3727,17565,95428,629795, 5171063,55857762,831428458,17625946914]