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A309064 as a simple table

na(n)
00
11
22
33
44
55
64
75
86
97
108
119
128
139
1410
1511
1610
179
1810
1911
2012
2113
2214
2313
2414
2515
2616
2715
2816
2917
3018
3117
3216
3317
3418
3517
3616
3715
3816
3917
4018
4117
4216
4317
4418
4519
4620
4721
4820
4921
5022

[0,1,2,3,4,5,4,5,6,7,8,9,8,9,10,11,10,9,10,11,12,
 13,14,13,14,15,16,15,16,17,18,17,16,17,18,17,16,
 15,16,17,18,17,16,17,18,19,20,21,20,21,22]