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A089948 as a simple table

na(n)
13
25
33
413
53
623
73
811
97
1013
113
12137
133
1419
1541
163
1729
181087
197
2023
213
22641
237
2479
25124516914725653
261254907
27983
28691
2919
309656610616812422838401
3111
323
3319
343
354951
3683404036302541
373
38372707
3953
403
4117
423
436073
443
4511
4637
473

[3,5,3,13,3,23,3,11,7,13,3,137,3,19,41,3,29,1087,
 7,23,3,641,7,79,124516914725653,1254907,983,691,
 19,9656610616812422838401,11,3,19,3,4951,
 83404036302541,3,372707,53,3,17,3,6073,3,11,37,3]