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A290633 as a simple table

na(n)
12
22
34
44
52
66
73
83
96
102
118
124
136
146
154
168
172
1810
194
2012
212
2214
234
2410
252
2612
273
289
296
308
318
326
339
343
3512
364
3714
382
3916
404
4118
422
4320
444
4516
462
4718
483
4915
505
515
5210
536
5412
558
5610
575
5815
593
6018
614
6220
632
6422
654
6624
672
6826
694
7022
712
7224
733
7421
756
7610
778
7812

[2,2,4,4,2,6,3,3,6,2,8,4,6,6,4,8,2,10,4,12,2,14,4,
 10,2,12,3,9,6,8,8,6,9,3,12,4,14,2,16,4,18,2,20,4,
 16,2,18,3,15,5,5,10,6,12,8,10,5,15,3,18,4,20,2,22,
 4,24,2,26,4,22,2,24,3,21,6,10,8,12]