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A037992 as a simple table

na(n)
01
12
26
324
4120
5840
67560
783160
81081080
917297280
10294053760
115587021440
12128501493120
133212537328000
1493163582512000
152888071057872000
16106858629141264000
174381203794791824000
18188391763176048432000
198854412869274276304000
20433866230594439538896000

[1,2,6,24,120,840,7560,83160,1081080,17297280,
 294053760,5587021440,128501493120,3212537328000,
 93163582512000,2888071057872000,
 106858629141264000,4381203794791824000,
 188391763176048432000,8854412869274276304000,
 433866230594439538896000]