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A070564 as a simple table

na(n)
00
11
21
31
42
52
62
73
83
93
103
113
123
134
144
154
165
175
185
196
206
216
226
236
246
257
267
277
288
298
308
319
329
339
349
359
369
3710
3810
3910
4010
4110
4210
4311
4411
4511
4611
4711
4811
4911
5011
5111
5212
5312
5412
5512
5612
5712
5812
5912
6012
6113
6213
6313
6414
6514
6614
6715
6815
6915
7015
7115
7215
7316
7416

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