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A001180 as a simple table

na(n)
11
21
32
43
53
65
79
816
928
1050
1189
12159
13285
14510
15914
161639
172938
185269
199451
2016952

[1,1,2,3,3,5,9,16,28,50,89,159,285,510,914,1639,
 2938,5269,9451,16952]