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A128671
as a simple table
n
a(n)
1
20
2
94556602
3
444
4
104
5
77
6
3504
7
1107
8
104
9
2948
10
903
11
77
12
1752
13
77
14
104
15
370
[20,94556602,444,104,77,3504,1107,104,2948,903,77, 1752,77,104,370]