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A049309
as a simple table
n
a(n)
1
1
2
1
3
2
4
2
5
3
6
4
7
8
8
20
9
20
10
30
11
88
12
94
13
214
14
457
15
596
16
1096
17
3280
18
5560
19
7316
20
21944
21
26272
22
49940
[1,1,2,2,3,4,8,20,20,30,88,94,214,457,596,1096, 3280,5560,7316,21944,26272,49940]