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A054149 as a simple table

na(n)
11
214
384
4410
51820
67648
731008
8122584
9475600
101818656
116874560
1225742624
1395645888
14353032960
151295729664
164732541824
1717211685120
1862362187264
19225201546240
20810825419264
212911520685056
2210429433085952

[1,14,84,410,1820,7648,31008,122584,475600,
 1818656,6874560,25742624,95645888,353032960,
 1295729664,4732541824,17211685120,62362187264,
 225201546240,810825419264,2911520685056,
 10429433085952]