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A216377 as a simple table

na(n)
21
32
41
54
63
72
81
96
103
112
121
137
144
152
161
1710
185
192
201
2115
228
234
242
251
2613
276
283
291
3025
3112
326
333
341
3525
3612
376
383
391
4028
4113
426
433
441
4533
4616
477
483
491
5041
5120
529
534
542
551
5626
5712
586
592
601
6138
6218
638
643
651
6657
6727
6812
695
702
711
7243
7320
749
754
762
7772
7833
7915
807
813
821

[1,2,1,4,3,2,1,6,3,2,1,7,4,2,1,10,5,2,1,15,8,4,2,
 1,13,6,3,1,25,12,6,3,1,25,12,6,3,1,28,13,6,3,1,33,
 16,7,3,1,41,20,9,4,2,1,26,12,6,2,1,38,18,8,3,1,57,
 27,12,5,2,1,43,20,9,4,2,72,33,15,7,3,1]