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A306471 as a simple table

na(n)
01
13
23
32
44
56
65
74
84
95
107
118
126
134
145
158
168
175
184
196
207
2110
2210
236
246
2512
2613
278
287
297
306
3111
329
334
343
358
3616
3712
388
399
409
4113
4214
4310
447
459
4618
4712
486
495
504
5111
5210
534
542
555
5619
5721
5811
599
6013
6120
6216
639
646
658
6617
6717
684
692
709
7120
7217
736
749
759
7615
7723
7814
799
8015

[1,3,3,2,4,6,5,4,4,5,7,8,6,4,5,8,8,5,4,6,7,10,10,
 6,6,12,13,8,7,7,6,11,9,4,3,8,16,12,8,9,9,13,14,10,
 7,9,18,12,6,5,4,11,10,4,2,5,19,21,11,9,13,20,16,9,
 6,8,17,17,4,2,9,20,17,6,9,9,15,23,14,9,15]