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A132464 as a simple table

na(n)
10
20
30
40
50
61
748
8735
96272
1037044
11169344
12640332
132090880
146073353
1516032016
1639078039
1789037312
18191456720
19391523328
20766192176
211442244096
222622518073
234623197040
247925786407
2513248326784
2621641442900
2734616067200
2854311107500
2983710972800

[0,0,0,0,0,1,48,735,6272,37044,169344,640332,
 2090880,6073353,16032016,39078039,89037312,
 191456720,391523328,766192176,1442244096,
 2622518073,4623197040,7925786407,13248326784,
 21641442900,34616067200,54311107500,83710972800]