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A138584 as a simple table

na(n)
13
25
3353
433533
535353
63353533
73553553
8333535333
9335333533
10355353553
11355555553
1233335353333
1333553335533
1435533333553
1535553535553
163335535355333
173335555555333
183353353533533
193353355533533
203355535355533
213533355533353
223533533353353

[3,5,353,33533,35353,3353533,3553553,333535333,
 335333533,355353553,355555553,33335353333,
 33553335533,35533333553,35553535553,3335535355333,
 3335555555333,3353353533533,3353355533533,
 3355535355533,3533355533353,3533533353353]