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A145630 as a simple table

na(n)
12
212
360
4840
52520
62520
732760
865520
91113840
104232592
114232592
1297349616
132433740400
147301221200
15211735414800
1613127595717600
1713127595717600
1813127595717600
19485721041551200
20485721041551200
2119914562703599200

[2,12,60,840,2520,2520,32760,65520,1113840,
 4232592,4232592,97349616,2433740400,7301221200,
 211735414800,13127595717600,13127595717600,
 13127595717600,485721041551200,485721041551200,
 19914562703599200]