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A276581 as a simple table

na(n)
00
11
22
32
43
53
64
74
84
95
105
115
126
136
146
157
167
177
187
198
208
218
228
238
249
259
269
279
289
2910
3010
3110
3210
3310
3410
3511
3611
3711
3811
3911
4011
4112
4212
4312
4412
4512
4612
4712
4813
4913
5013
5113
5213
5313
5413
5514
5614
5714
5814
5914
6014
6114
6215
6315
6415
6515
6615
6715
6815
6915
7016
7116
7216
7316
7416
7516
7616
7716
7817
7917
8017
8117
8217
8317
8417
8517
8617
8718

[0,1,2,2,3,3,4,4,4,5,5,5,6,6,6,7,7,7,7,8,8,8,8,8,
 9,9,9,9,9,10,10,10,10,10,10,11,11,11,11,11,11,12,
 12,12,12,12,12,12,13,13,13,13,13,13,13,14,14,14,
 14,14,14,14,15,15,15,15,15,15,15,15,16,16,16,16,
 16,16,16,16,17,17,17,17,17,17,17,17,17,18]