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A064137 as a simple table

na(n)
02
12
24
34
44
52
62
74
88
94
102
112
124
138
144
158
164
174
184
198
2016
218
2216
238
248
2516
268
2732
282
294
302
314
324
3332
344
352
368
378
388
3916
402
4116
422
4316
444
458
462
4716
488
494
5032
5116
528
5316
5432
5516
5664
5716
5832
5932
604
6116
6216
6316
6432
658
6616
678
688
6964
7016
714
7216
7316
7464
7564
768
774
788

[2,2,4,4,4,2,2,4,8,4,2,2,4,8,4,8,4,4,4,8,16,8,16,
 8,8,16,8,32,2,4,2,4,4,32,4,2,8,8,8,16,2,16,2,16,4,
 8,2,16,8,4,32,16,8,16,32,16,64,16,32,32,4,16,16,
 16,32,8,16,8,8,64,16,4,16,16,64,64,8,4,8]