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A137835 as a simple table

na(n)
173
2733
333223
435323
572253
672353
773327
873523
973553
1075223
1175253
1277237
1377323
1477527
1577557
163235223
173353323
183375233
193527233
203532733
213573523
223573733
233575333
243733333
253735233
263735353
273753353
283755273
293755333

[73,733,33223,35323,72253,72353,73327,73523,73553,
 75223,75253,77237,77323,77527,77557,3235223,
 3353323,3375233,3527233,3532733,3573523,3573733,
 3575333,3733333,3735233,3735353,3753353,3755273,
 3755333]