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A049788 as a simple table

na(n)
40
50
60
70
81
90
104
113
124
134
148
153
169
179
1811
198
2012
2110
2217
239
2413
2515
2623
2714
2817
2919
3022
3120
3230
3312
3427
3522
3626
3730
3835
3915
4029
4135
4235
4327
4443
4522
4639
4736
4834
4940
5056
5129
5242
5338
5445
5539
5658
5743
5854
5934
6045
6149
6269
6333
6459
6567
6656
6745
6863

[0,0,0,0,1,0,4,3,4,4,8,3,9,9,11,8,12,10,17,9,13,
 15,23,14,17,19,22,20,30,12,27,22,26,30,35,15,29,
 35,35,27,43,22,39,36,34,40,56,29,42,38,45,39,58,
 43,54,34,45,49,69,33,59,67,56,45,63]