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A243624 as a simple table

na(n)
15
27
38
49
510
612
713
814
915
1016
1116
1218
1318
1419
1520
1620
1721
1822
1922
2024
2124
2224
2325
2426
2526
2628
2728
2830
2930
3030
3131
3232
3332
3433
3534
3634
3734
3836
3936
4036
4136
4238
4339
4440
4540
4640
4742
4842
4942
5042
5143
5244
5344
5444
5545
5646
5746
5846
5948
6048
6148
6248
6348
6449
6550
6650
6750
6850
6952
7052
7152
7254
7354
7454
7554
7654
7755
7856
7956
8056
8158
8258
8358

[5,7,8,9,10,12,13,14,15,16,16,18,18,19,20,20,21,
 22,22,24,24,24,25,26,26,28,28,30,30,30,31,32,32,
 33,34,34,34,36,36,36,36,38,39,40,40,40,42,42,42,
 42,43,44,44,44,45,46,46,46,48,48,48,48,48,49,50,
 50,50,50,52,52,52,54,54,54,54,54,55,56,56,56,58,
 58,58]