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A341100 as a simple table

na(n)
11
21
34
41
54
64
79
81
94
104
119
124
139
149
1513
161
174
184
199
204
219
229
2315
244
259
269
2716
289
2916
3013
3117
321
334
344
359
364
379
389
3916
404
419
429
4316
449
4516
4615
4719
484
499
509
5116
529
5316
5416
5520
569
5716
5816
5920
6013
6120
6217
6321

[1,1,4,1,4,4,9,1,4,4,9,4,9,9,13,1,4,4,9,4,9,9,15,
 4,9,9,16,9,16,13,17,1,4,4,9,4,9,9,16,4,9,9,16,9,
 16,15,19,4,9,9,16,9,16,16,20,9,16,16,20,13,20,17,
 21]