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A051547 as a simple table

na(n)
11
21
32
42
54
64
712
812
912
1012
1160
1260
1360
1460
15120
16120
17240
18240
19720
20720
21720
22720
237920
247920
257920
267920
277920
287920
2955440
3055440
3155440
3255440
3355440
3455440
3555440
3655440
3755440
3855440
3955440
4055440
4155440
4255440
4355440
4455440
4555440
4655440
471275120
481275120
491275120

[1,1,2,2,4,4,12,12,12,12,60,60,60,60,120,120,240,
 240,720,720,720,720,7920,7920,7920,7920,7920,7920,
 55440,55440,55440,55440,55440,55440,55440,55440,
 55440,55440,55440,55440,55440,55440,55440,55440,
 55440,55440,1275120,1275120,1275120]