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A281944 as a simple table

na(n)
11
22
314
43
542
6150
74
884
9600
101560
115
12140
131500
147800
1516800
166
17210
183000
1923400
20100800
21191520
227
23294
245250
2554600
26352800
271340640
282328480
298
30392
318400
32109200
33940800
345362560
3518627840
3630240000
379
38504
3912600
40196560
412116800
4216087680
4383825280
44272160000
45419126400
4610
47630
4818000
49327600
504233600
5140219200
52279417600
531360800000
544191264000
556187104000

[1,2,14,3,42,150,4,84,600,1560,5,140,1500,7800,
 16800,6,210,3000,23400,100800,191520,7,294,5250,
 54600,352800,1340640,2328480,8,392,8400,109200,
 940800,5362560,18627840,30240000,9,504,12600,
 196560,2116800,16087680,83825280,272160000,
 419126400,10,630,18000,327600,4233600,40219200,
 279417600,1360800000,4191264000,6187104000]