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A072753
as a simple table
n
a(n)
3
2
4
4
5
10
6
24
7
31
8
42
9
60
10
74
11
94
12
117
13
148
14
173
15
213
16
236
17
275
18
316
19
364
20
409
21
436
[2,4,10,24,31,42,60,74,94,117,148,173,213,236,275, 316,364,409,436]