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A105278 as a simple table

na(n)
11
22
31
46
56
61
724
836
912
101
11120
12240
13120
1420
151
16720
171800
181200
19300
2030
211
225040
2315120
2412600
254200
26630
2742
281
2940320
30141120
31141120
3258800
3311760
341176
3556
361
37362880
381451520
391693440
40846720
41211680
4228224
432016
4472
451
463628800
4716329600

[1,2,1,6,6,1,24,36,12,1,120,240,120,20,1,720,1800,
 1200,300,30,1,5040,15120,12600,4200,630,42,1,
 40320,141120,141120,58800,11760,1176,56,1,362880,
 1451520,1693440,846720,211680,28224,2016,72,1,
 3628800,16329600]