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A094309 as a simple table

na(n)
31
44
514
644
7132
8384
91096
103088
118624
1223936
1366144
14182208
15500800
161374208
173766400
1810313984
1928226304
2077211648
21211138048
22577223680
231577772032
244312088576
2511783915520
2632200396800
2787985401856
28240405151744

[1,4,14,44,132,384,1096,3088,8624,23936,66144,
 182208,500800,1374208,3766400,10313984,28226304,
 77211648,211138048,577223680,1577772032,
 4312088576,11783915520,32200396800,87985401856,
 240405151744]