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A179686 as a simple table

na(n)
21
32
44
52
62
72
84
92
106
114
124
136
148
156
164
172
184
1910
204
216
222
234
2412
2512
264
2714
2812
292
3014
3114
324
332
3418
3512
3616
374
388
3916
4016
4114
4218
434
4412
454
464
474
4820
4910
506
5122
5224
534
5426
556
5616
576
5820
594
6012
6126
628
6322
644
652
6634
678
6820
6914
7034
7124
7232
736
7420
7542
764
7712
788
7910
8024

[1,2,4,2,2,2,4,2,6,4,4,6,8,6,4,2,4,10,4,6,2,4,12,
 12,4,14,12,2,14,14,4,2,18,12,16,4,8,16,16,14,18,4,
 12,4,4,4,20,10,6,22,24,4,26,6,16,6,20,4,12,26,8,
 22,4,2,34,8,20,14,34,24,32,6,20,42,4,12,8,10,24]