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A243731 as a simple table

na(n)
11
22
33
44
55
61
76
83
92
107
115
125
133
148
157
168
177
184
199
209
2111
2211
239
245
251
2610
2711
2814
2915
3014
3111
324
336
343
352
3611
3713
3817
3919
4019
4117
427
4313
448
457
467
475
485
493
5012
5115
5220
5323
5424
5523
5610
5720
5813
5912
6015
6112
6213
6310
648
657
668
677
684
6913
7017
7123
7227
7329
7429

[1,2,3,4,5,1,6,3,2,7,5,5,3,8,7,8,7,4,9,9,11,11,9,
 5,1,10,11,14,15,14,11,4,6,3,2,11,13,17,19,19,17,7,
 13,8,7,7,5,5,3,12,15,20,23,24,23,10,20,13,12,15,
 12,13,10,8,7,8,7,4,13,17,23,27,29,29]