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A065853 as a simple table

na(n)
22
34
46
57
68
715
811
911
1011
1115
1215
1319
1411
1514
1615
1714
1811
1916
2013
2118
2214
2314
2414
2516
2613
2716
2815
2917
3013
3116
3214
3315
3417
3516
3615
3716
3814
3917
4014
4117
4216
4317
4414
4516
4615
4715
4814
4917
5017
5116
5216
5316
5415
5518
5616
5717
5814
5915
6014
6116
6215
6315
6416
6516
6617
6717
6813
6917
7015
7117
7213

[2,4,6,7,8,15,11,11,11,15,15,19,11,14,15,14,11,16,
 13,18,14,14,14,16,13,16,15,17,13,16,14,15,17,16,
 15,16,14,17,14,17,16,17,14,16,15,15,14,17,17,16,
 16,16,15,18,16,17,14,15,14,16,15,15,16,16,17,17,
 13,17,15,17,13]