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A117848 as a simple table

na(n)
12
21
31
42
55
69
717
811
94
1016
1161
12118
13141
14680
1537
16430
17401
18576
19885
20953
21358
221857
231376
2491
25798
26209
273014
285707
292327
303013
31923
329437
33403
349392
35356
363161
37266
382012
392796
404095
416362
423008
4312227
4418277
4525353
463682
4718414
4821783
491889

[2,1,1,2,5,9,17,11,4,16,61,118,141,680,37,430,401,
 576,885,953,358,1857,1376,91,798,209,3014,5707,
 2327,3013,923,9437,403,9392,356,3161,266,2012,
 2796,4095,6362,3008,12227,18277,25353,3682,18414,
 21783,1889]