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A075498 as a simple table

na(n)
11
23
31
49
59
61
727
863
918
101
1181
12405
13225
1430
151
16243
172511
182430
19585
2045
211
22729
2315309
2424381
259450
261260
2763
281
292187
3092583
31234738
32137781
3328350
342394
3584
361
376561
38557685
392205225
401888110
41563031
4271442
434158
44108
451

[1,3,1,9,9,1,27,63,18,1,81,405,225,30,1,243,2511,
 2430,585,45,1,729,15309,24381,9450,1260,63,1,2187,
 92583,234738,137781,28350,2394,84,1,6561,557685,
 2205225,1888110,563031,71442,4158,108,1]