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A274511 as a simple table

na(n)
11
23
37
44
57
62
710
89
96
1015
1111
1214
133
145
1511
1612
178
1817
1919
205
217
2221
2321
244
2534
2625
275
289
296
3020
3132
3217
3331
3440

[1,3,7,4,7,2,10,9,6,15,11,14,3,5,11,12,8,17,19,5,
 7,21,21,4,34,25,5,9,6,20,32,17,31,40]