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A073917 as a simple table

na(n)
13
27
331
4211
52311
6120121
74084081
8106696591
9892371481
1071166625531
11200560490131
1229682952539241
132129751844690471
1478496567990020181
158608456956238879741
1697767475431570134191
179613801750771063195351

[3,7,31,211,2311,120121,4084081,106696591,
 892371481,71166625531,200560490131,29682952539241,
 2129751844690471,78496567990020181,
 8608456956238879741,97767475431570134191,
 9613801750771063195351]