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A105725 as a simple table

na(n)
11
22
36
46
524
660
724
8120
9360
10840
11120
12720
132520
146720
1515120
16720
175040
1820160
1960480
20151200
21332640
225040
2340320
24181440
25604800
261663200
273991680
288648640
2940320
30362880
311814400
326652800
3319958400
3451891840
35121080960
36259459200

[1,2,6,6,24,60,24,120,360,840,120,720,2520,6720,
 15120,720,5040,20160,60480,151200,332640,5040,
 40320,181440,604800,1663200,3991680,8648640,40320,
 362880,1814400,6652800,19958400,51891840,
 121080960,259459200]