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A082140 as a simple table

na(n)
01
17
256
3336
41680
57392
629568
7109824
8384384
91281280
104100096
1112673024
1238019072
13111132672
14317521920
15889061376
162444918784
176615662592
1817641766912
1946425702400
20120706826240
21310388981760
22790081044480

[1,7,56,336,1680,7392,29568,109824,384384,1281280,
 4100096,12673024,38019072,111132672,317521920,
 889061376,2444918784,6615662592,17641766912,
 46425702400,120706826240,310388981760,
 790081044480]