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A064318 as a simple table

na(n)
01
11
22
34
45
56
68
79
810
911
1013
1114
1215
1316
1418
1519
1620
1721
1823
1924
2025
2126
2228
2329
2430
2531
2632
2734
2835
2936
3037
3138
3240
3341
3442
3543
3644
3746
3847
3948
4049
4150
4252
4353
4454
4555
4656
4758
4859
4960
5061
5162
5264
5365
5466
5567
5668
5770
5871
5972
6073
6174
6275
6377
6478
6579
6680
6781
6883
6984
7085
7186

[1,1,2,4,5,6,8,9,10,11,13,14,15,16,18,19,20,21,23,
 24,25,26,28,29,30,31,32,34,35,36,37,38,40,41,42,
 43,44,46,47,48,49,50,52,53,54,55,56,58,59,60,61,
 62,64,65,66,67,68,70,71,72,73,74,75,77,78,79,80,
 81,83,84,85,86]