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A146180 as a simple table

na(n)
11
21
39
433
5113
61711
759971
81694043
974822217
107821008273
111319866139817
12301739131956013
13120737110736027887

[1,1,9,33,113,1711,59971,1694043,74822217,
 7821008273,1319866139817,301739131956013,
 120737110736027887]