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A278959 as a simple table

na(n)
00
10
20
31
42
52
63
73
84
94
104
114
126
136
148
158
168
178
1810
1910
2012
2112
2212
2312
2414
2514
2614
2714
2814
2914
3016
3116
3218
3318
3418
3518
3618
3718
3820
3920
4020
4120
4222
4322
4424
4524
4624
4724
4826
4926
5026
5126
5226
5326
5428
5528
5628
5728
5828
5928
6030

[0,0,0,1,2,2,3,3,4,4,4,4,6,6,8,8,8,8,10,10,12,12,
 12,12,14,14,14,14,14,14,16,16,18,18,18,18,18,18,
 20,20,20,20,22,22,24,24,24,24,26,26,26,26,26,26,
 28,28,28,28,28,28,30]