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A333720 as a simple table

na(n)
312
416
50
60
7168
8384
90
100
114576
1211808
130
140
15232920
16654848
170
180
1916141792
2048181600
210
220
231540635588
245155171200
250
260

[12,16,0,0,168,384,0,0,4576,11808,0,0,232920,
 654848,0,0,16141792,48181600,0,0,1540635588,
 5155171200,0,0]