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A145969 as a simple table

na(n)
11
21
31
41
51
61
72
81
93
101
116
121
1315
143
1543
168
17140
1827
19656
2089
213196
22333
2318641
241310
25125685
267293
271010276
2848975
299527791
30401989

[1,1,1,1,1,1,2,1,3,1,6,1,15,3,43,8,140,27,656,89,
 3196,333,18641,1310,125685,7293,1010276,48975,
 9527791,401989]