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A022945
as a simple table
n
a(n)
1
1
2
4
3
9
4
15
5
22
6
30
7
40
8
51
9
63
10
76
11
90
12
106
13
123
14
141
15
160
16
180
17
201
18
224
19
248
20
273
21
299
[1,4,9,15,22,30,40,51,63,76,90,106,123,141,160, 180,201,224,248,273,299]