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A082138 as a simple table

na(n)
01
14
220
380
4280
5896
62688
77680
821120
956320
10146432
11372736
12931840
132293760
145570560
1513369344
1631752192
1774711040
18174325760
19403701760
20928514048
212122317824
224823449600
2310905190400
2424536678400
2554962159616
26122607894528

[1,4,20,80,280,896,2688,7680,21120,56320,146432,
 372736,931840,2293760,5570560,13369344,31752192,
 74711040,174325760,403701760,928514048,2122317824,
 4823449600,10905190400,24536678400,54962159616,
 122607894528]