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A337398 as a simple table

na(n)
10
20
31
40
51
64
74
80
94
106
113
124
139
144
151
160
171
184
196
2016
214
2214
233
2416
256
2622
2722
284
2916
3016
318
320
3325
3418
3511
364
377
386
3922
4016
4110
424
4316
4436
4531
4626
4725
4816
4939
506
511
5248
5324
5422
5536
5632
5725
5816
5920
6016
6112
628
634
640
6561
6658
6733
6852
6913
7046
7112
7240
7332
7444

[0,0,1,0,1,4,4,0,4,6,3,4,9,4,1,0,1,4,6,16,4,14,3,
 16,6,22,22,4,16,16,8,0,25,18,11,4,7,6,22,16,10,4,
 16,36,31,26,25,16,39,6,1,48,24,22,36,32,25,16,20,
 16,12,8,4,0,61,58,33,52,13,46,12,40,32,44]