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A039913 as a simple table

na(n)
00
11
21
31
42
51
62
73
83
92
103
115
124
135
143
155
168
177
187
198
205
218
2213
2311
2412
2511
2613
278
2813
2921
3018
3119
3219
3318
3421
3513
3621
3734
3829
3931
4030
4131
4229
4334
4421
4534
4655
4747
4850
4949
5049
5150
5247
5355
5434
5555
5689
5776
5881
5979
6080
6179
6281
6376
6489
6555
6689
67144
68123
69131
70128
71129
72129
73128

[0,1,1,1,2,1,2,3,3,2,3,5,4,5,3,5,8,7,7,8,5,8,13,
 11,12,11,13,8,13,21,18,19,19,18,21,13,21,34,29,31,
 30,31,29,34,21,34,55,47,50,49,49,50,47,55,34,55,
 89,76,81,79,80,79,81,76,89,55,89,144,123,131,128,
 129,129,128]