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A297557 as a simple table

na(n)
01
13
21
31
41
527
62
728
832
91
1027
1127
121
1327
1427
151
1627
1727
181
1927
2027
211
2227
2327
241
2527
2627
271
2827
2927
301
3127
3227
331
3427
3527
361
3727

[1,3,1,1,1,27,2,28,32,1,27,27,1,27,27,1,27,27,1,
 27,27,1,27,27,1,27,27,1,27,27,1,27,27,1,27,27,1,
 27]