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A146401 as a simple table

na(n)
11
21
31
41
51
61
71
83
99
1019
1133
1277
13239
14919
153879
1617353
1775579
18398897
192332505
2016656293
21126029691
221117371931
2310274166583

[1,1,1,1,1,1,1,3,9,19,33,77,239,919,3879,17353,
 75579,398897,2332505,16656293,126029691,
 1117371931,10274166583]