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A327485 as a simple table

na(n)
21
32
42
56
69
736
836
972
10144
11720
12960
135760
1414400
1536000
1636000
17252000
18420000
193360000
205600000
2116800000
2250400000
23453600000
24567000000
251701000000
265953500000
2711907000000
2823814000000
29238140000000
30476280000000
315239080000000
325239080000000

[1,2,2,6,9,36,36,72,144,720,960,5760,14400,36000,
 36000,252000,420000,3360000,5600000,16800000,
 50400000,453600000,567000000,1701000000,
 5953500000,11907000000,23814000000,238140000000,
 476280000000,5239080000000,5239080000000]