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A153162 as a simple table

na(n)
12
25
35
48
57
67
78
811
913
1012
119
129
1312
1413
1511
1614
1719
1821
1918
2017
2119
2216
2311
2411
2516
2619
2717
2818
2921
3019
3114
3217
3325
3430
3527
3629
3734
3831
3923
4022
4129
4231
4326
4423
4525
4620
4713
4813
4920
5025
5123
5226
5331
5429
5522
5623
5731
5834
5929
6027
6130
6225
6317
6420
6531
6639
6736
6841
6949
7046
7135
7237

[2,5,5,8,7,7,8,11,13,12,9,9,12,13,11,14,19,21,18,
 17,19,16,11,11,16,19,17,18,21,19,14,17,25,30,27,
 29,34,31,23,22,29,31,26,23,25,20,13,13,20,25,23,
 26,31,29,22,23,31,34,29,27,30,25,17,20,31,39,36,
 41,49,46,35,37]