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A108869 as a simple table

na(n)
01
17
250
3366
42760
521576
6176112
71512720
813781376
9134110080
101401566976
1115780033792
12191537187840
132503044135936
1435120982067200
15527284915992576
168439379765788672
17143486382677852160
182582856448158007296

[1,7,50,366,2760,21576,176112,1512720,13781376,
 134110080,1401566976,15780033792,191537187840,
 2503044135936,35120982067200,527284915992576,
 8439379765788672,143486382677852160,
 2582856448158007296]