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A129955 as a simple table

na(n)
02
13
28
318
440
588
6192
7416
8896
91920
104096
118704
1218432
1338912
1481920
15172032
16360448
17753664
181572864
193276800
206815744
2114155776
2229360128
2360817408
24125829120
25260046848
26536870912
271107296256
282281701376
294697620480

[2,3,8,18,40,88,192,416,896,1920,4096,8704,18432,
 38912,81920,172032,360448,753664,1572864,3276800,
 6815744,14155776,29360128,60817408,125829120,
 260046848,536870912,1107296256,2281701376,
 4697620480]