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A061464 as a simple table

na(n)
01
11
24
3108
46912
521600000
6583200000
7480290277600000
831476303632793600000
916727798278915463577600000
1052274369621610823680000000000
1114914487726878692033020558868480000000000

[1,1,4,108,6912,21600000,583200000,
 480290277600000,31476303632793600000,
 16727798278915463577600000,
 52274369621610823680000000000,
 14914487726878692033020558868480000000000]