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A181548 as a simple table

na(n)
11
22
34
46
53
69
73
88
91
105
116
129
135
147
153
166
177
182
194
202
216
229
233
247
258
2610
278
284
2912
309
315
327
338
346
356
3611
3710
3812
399
404
418
4210
435
4415
4512
465
477
489
4911
5013
519
526
5310
5411
557
5613
5711
5815
5912
608
614
6212
639
6410
6514
6611
6710
683
6912
7015
7113
728
7310
745
756
769
7712
7814
7916
8014
817
8212
839
8413
8514
861
8711
8813
8911
906
9115
9217
9310
945
953
9618
976
989
997
1008

[1,2,4,6,3,9,3,8,1,5,6,9,5,7,3,6,7,2,4,2,6,9,3,7,
 8,10,8,4,12,9,5,7,8,6,6,11,10,12,9,4,8,10,5,15,12,
 5,7,9,11,13,9,6,10,11,7,13,11,15,12,8,4,12,9,10,
 14,11,10,3,12,15,13,8,10,5,6,9,12,14,16,14,7,12,9,
 13,14,1,11,13,11,6,15,17,10,5,3,18,6,9,7,8]