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A178034 as a simple table

na(n)
11
21
31
47
51
611
71
8253
917
1019
111
12595
131
1427
1529
1639711
171
181378
191
201711
2141
2243
231
24138415
2549
2651
273160
283403
291
303916
311
3225637001
3365
3467
3569
36477191
371
3875
3977
40657359
411
427750
431
448515
458911
4691
471
48132563501
4997
5011026
51101
5211935
531
541633355

[1,1,1,7,1,11,1,253,17,19,1,595,1,27,29,39711,1,
 1378,1,1711,41,43,1,138415,49,51,3160,3403,1,3916,
 1,25637001,65,67,69,477191,1,75,77,657359,1,7750,
 1,8515,8911,91,1,132563501,97,11026,101,11935,1,
 1633355]