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A143498 as a simple table

na(n)
31
46
51
642
714
81
9336
10168
1124
121
133024
142016
15432
1636
171
1830240
1925200
207200
21900
2250
231
24332640
25332640
26118800
2719800
281650
2966
301
313991680
324656960
331995840
34415800
3546200
362772
3784
381
3951891840
4069189120
4134594560
428648640
431201200
4496096
454368

[1,6,1,42,14,1,336,168,24,1,3024,2016,432,36,1,
 30240,25200,7200,900,50,1,332640,332640,118800,
 19800,1650,66,1,3991680,4656960,1995840,415800,
 46200,2772,84,1,51891840,69189120,34594560,
 8648640,1201200,96096,4368]