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A242532 as a simple table

na(n)
10
20
30
40
50
60
70
80
91
100
110
120
130
1420
1539
160
170
180
190
20319
21967
220
230
241464
256114
2616856
2744370
280
290
300
310
322032951
338840796
3412791922
35101519154
360
370

[0,0,0,0,0,0,0,0,1,0,0,0,0,20,39,0,0,0,0,319,967,
 0,0,1464,6114,16856,44370,0,0,0,0,2032951,8840796,
 12791922,101519154,0,0]