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A218581 as a simple table

na(n)
11
20
32
40
51
64
70
81
94
1010
110
121
136
1415
1531
160
171
1810
1929
2062
21115
220
231
2418
2563
26148
27288
28496
290
301
3134
32149
33392
34826
351496
362437
370
381
3966
40375
411120
422592
435036
448615
4513435
460
471
48130
49989
503392
518698
5218332
5333391
5454548
5582127

[1,0,2,0,1,4,0,1,4,10,0,1,6,15,31,0,1,10,29,62,
 115,0,1,18,63,148,288,496,0,1,34,149,392,826,1496,
 2437,0,1,66,375,1120,2592,5036,8615,13435,0,1,130,
 989,3392,8698,18332,33391,54548,82127]