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A273158 as a simple table

na(n)
15
26
312
48
58
614
714
89
921
109
1114
1217
1316
1417
1519
1611
1716
1825
1916
2011
2132
2217
2316
2420
2511
2618
2733
2820
2917
3021
3117
3212
3333
3418
3520
3629
3717
3818
3935
4012
4117
4237
4317
4420
4531
4618
4717
4823
4926
5012

[5,6,12,8,8,14,14,9,21,9,14,17,16,17,19,11,16,25,
 16,11,32,17,16,20,11,18,33,20,17,21,17,12,33,18,
 20,29,17,18,35,12,17,37,17,20,31,18,17,23,26,12]