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A247257 as a simple table

na(n)
11
21
32
42
54
62
72
84
92
104
112
124
134
142
158
168
178
182
192
208
214
222
232
248
254
264
272
284
294
308
312
3216
334
348
358
364
374
382
398
4016
418
424
432
444
458
462
472
4816
492
504
5116
528
534
542
558
568
574
584
592
6016
614
622
634
6416
6516
664
672
6816
694
708
712
728
738
744
758
764
774
788
792
8032

[1,1,2,2,4,2,2,4,2,4,2,4,4,2,8,8,8,2,2,8,4,2,2,8,
 4,4,2,4,4,8,2,16,4,8,8,4,4,2,8,16,8,4,2,4,8,2,2,
 16,2,4,16,8,4,2,8,8,4,4,2,16,4,2,4,16,16,4,2,16,4,
 8,2,8,8,4,8,4,4,8,2,32]