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A147437 as a simple table

na(n)
11
21
31
41
55
61
719
811
9496
10277
1113622
123725
13625566
14100329
1546290886
167689337

[1,1,1,1,5,1,19,11,496,277,13622,3725,625566,
 100329,46290886,7689337]