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A054880 as a simple table

na(n)
00
16
260
3546
44920
544286
6398580
73587226
832285040
9290565366
102615088300
1123535794706
12211822152360
131906399371246
1417157594341220
15154418349070986
161389765141638880
1712507886274749926
18112570976472749340
191013138788254744066
209118249094292696600
2182064241848634269406
22738578176637708424660

[0,6,60,546,4920,44286,398580,3587226,32285040,
 290565366,2615088300,23535794706,211822152360,
 1906399371246,17157594341220,154418349070986,
 1389765141638880,12507886274749926,
 112570976472749340,1013138788254744066,
 9118249094292696600,82064241848634269406,
 738578176637708424660]