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A257503 as a simple table

na(n)
11
22
34
43
512
618
75
816
972
1096
116
1222
1390
14480
15600
167
1748
18114
19576
203600
214320
228
2352
24360
25696
264200
2730240
2835280
299
3060
31378
322880
334920
3434560
35282240
36322560
3710
3864
39432
402976
4125200
4239600
43317520
442903040
453265920
4611
4766
48450
493360
5025800
51241920
52357840
533225600
5432659200
5536288000
5613
5770
58456
593456
6028800
61246240
622540160
633588480
6435925120
65399168000
66439084800

[1,2,4,3,12,18,5,16,72,96,6,22,90,480,600,7,48,
 114,576,3600,4320,8,52,360,696,4200,30240,35280,9,
 60,378,2880,4920,34560,282240,322560,10,64,432,
 2976,25200,39600,317520,2903040,3265920,11,66,450,
 3360,25800,241920,357840,3225600,32659200,
 36288000,13,70,456,3456,28800,246240,2540160,
 3588480,35925120,399168000,439084800]