login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A056837
as a simple table
n
a(n)
0
0
1
0
2
1
3
1
4
2
5
3
6
5
7
6
8
8
9
10
10
13
11
15
12
18
13
21
14
25
15
28
16
32
17
36
18
41
19
45
20
50
21
55
22
61
23
66
24
72
25
78
[0,0,1,1,2,3,5,6,8,10,13,15,18,21,25,28,32,36,41, 45,50,55,61,66,72,78]