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A247206 as a simple table

na(n)
31
41
54
62
73
85
93
106
113
123
137
144
155
165
1715
184
1910
209
2110
226
235
2410
255
268
276
2812
2911
3011
316
3212
3312
348
359
369
379
388
3911
4012
416
4214
437
445
4525
4615
477
4810
4914
5038
5110
5216
5311
549
5512
5618
5710
5817
597
6012
619
6212
6338
6416
6517
6616
6710
6813
6935
7010
7125
7272
7313
7429
7520
768

[1,1,4,2,3,5,3,6,3,3,7,4,5,5,15,4,10,9,10,6,5,10,
 5,8,6,12,11,11,6,12,12,8,9,9,9,8,11,12,6,14,7,5,
 25,15,7,10,14,38,10,16,11,9,12,18,10,17,7,12,9,12,
 38,16,17,16,10,13,35,10,25,72,13,29,20,8]