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A306640 as a simple table

na(n)
13
26
32
47
54
63
720
88
93
102
1113
1220
135
146
153
1621
177
1810
194
204
212
2215
2342
247
256
269
273
283
2954
3016
3121
3212
335
348
356
362
3741
3813
3913
4042
417
4220
435
444
453
46110
4740
4827
4916
5014
516
5220
534
543
552
5627
5755
5821
5954
6023
618
6213
6310
649
656
663
67156
6825
6955
7011

[3,6,2,7,4,3,20,8,3,2,13,20,5,6,3,21,7,10,4,4,2,
 15,42,7,6,9,3,3,54,16,21,12,5,8,6,2,41,13,13,42,7,
 20,5,4,3,110,40,27,16,14,6,20,4,3,2,27,55,21,54,
 23,8,13,10,9,6,3,156,25,55,11]