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A147044 as a simple table

na(n)
11
21
31
41
51
61
71
81
957
10101
11713
121409
1316209
1436805
151045937
162912737
17187227785
18638780181
1963010306161
20259616518697
2140933920799465
22203480267447389
2359661340540245489
24359399633370402801
25191689597051107880169

[1,1,1,1,1,1,1,1,57,101,713,1409,16209,36805,
 1045937,2912737,187227785,638780181,63010306161,
 259616518697,40933920799465,203480267447389,
 59661340540245489,359399633370402801,
 191689597051107880169]