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A291768 as a simple table

na(n)
12
24
35
46
55
68
75
810
98
108
115
1211
135
148
1513
1614
175
1815
195
2011
2113
228
235
2417
258
268
2711
2811
295
3018
315
3219
3313
348
3513
3620
375
388
3913
4017
415
4218
435
4411
4518
468
475
4822
498
5015
5113
5211
535
5420
5513
5617
5713
588
595
6024
615
628
6318
6425
6513
6618
675
6811
6913
7018
715
7227
735
748
7518
7611
7713
7818
795
8022
8117
828
835
8424
8513
868
8713
8817
895
9028
9113
9211
9313
948
9513
9629
975
9815
9918
10020
1015

[2,4,5,6,5,8,5,10,8,8,5,11,5,8,13,14,5,15,5,11,13,
 8,5,17,8,8,11,11,5,18,5,19,13,8,13,20,5,8,13,17,5,
 18,5,11,18,8,5,22,8,15,13,11,5,20,13,17,13,8,5,24,
 5,8,18,25,13,18,5,11,13,18,5,27,5,8,18,11,13,18,5,
 22,17,8,5,24,13,8,13,17,5,28,13,11,13,8,13,29,5,
 15,18,20,5]