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A169769 as a simple table

na(n)
40
50
60
70
80
90
106
110
1244
130
14396
150
163868
170
1837070
190
20362192
210
223516314
230
2434237842
250
26333077332
270
283241403380
290
3031542464952
310
32306944118820
330
342986962829456
350
3629066627247828
370
38282854730020224
390
402752516325518516
410

[0,0,0,0,0,0,6,0,44,0,396,0,3868,0,37070,0,362192,
 0,3516314,0,34237842,0,333077332,0,3241403380,0,
 31542464952,0,306944118820,0,2986962829456,0,
 29066627247828,0,282854730020224,0,
 2752516325518516,0]