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A273724 as a simple table

na(n)
00
10
20
32
41
54
64
76
83
98
108
1110
129
1312
1412
1514
1611
1716
1816
1918
2017
2120
2220
2322
2419
2524
2624
2726
2825
2928
3028
3130
3227
3332
3432
3534
3633
3736
3836
3938
4035
4140
4240
4342
4441
4544
4644
4746
4843
4948
5048
5150
5249
5352
5452
5554
5651
5756
5856
5958
6057
6160
6260
6362
6459
6564
6664
6766
6865
6968
7068
7170
7267
7372
7472
7574
7673
7776
7876
7978
8075
8180
8280

[0,0,0,2,1,4,4,6,3,8,8,10,9,12,12,14,11,16,16,18,
 17,20,20,22,19,24,24,26,25,28,28,30,27,32,32,34,
 33,36,36,38,35,40,40,42,41,44,44,46,43,48,48,50,
 49,52,52,54,51,56,56,58,57,60,60,62,59,64,64,66,
 65,68,68,70,67,72,72,74,73,76,76,78,75,80,80]