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A227068 as a simple table

na(n)
12
26
312
424
548
660
7144
8120
9180
10240
113072
12360
13900
14960
15720
16840
175184
181260
1936864
201680
212880
223600
2312582912
242520
256480
2661440
276300
286720
29805306368
305040
3114400
327560
3346080
34983040
3525920
3610080
3732400
38746496
39184320
4015120

[2,6,12,24,48,60,144,120,180,240,3072,360,900,960,
 720,840,5184,1260,36864,1680,2880,3600,12582912,
 2520,6480,61440,6300,6720,805306368,5040,14400,
 7560,46080,983040,25920,10080,32400,746496,184320,
 15120]