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A219043
as a simple table
n
a(n)
1
3
2
4
3
9
4
13
5
28
6
45
7
46
8
184
9
285
10
688
11
697
12
1257
13
1785
14
2368
15
3721
16
7444
17
51613
[3,4,9,13,28,45,46,184,285,688,697,1257,1785,2368, 3721,7444,51613]