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A249796 as a simple table

na(n)
11
21
32
42
56
64
76
818
928
108
1124
1272
13128
14120
1516
16120
17360
18672
19840
20496
2132
22720
232160
244128
255760
265312
272016
2864
295040
3015120
3129280
3243200
3347616
3432928
358128
36128
3740320
38120960
39236160
40360000
41435264
42387072
43201728
4432640
45256
46362880
471088640
482136960
493326400
504249920
514314240
523121152
531226880
54130816
55512

[1,1,2,2,6,4,6,18,28,8,24,72,128,120,16,120,360,
 672,840,496,32,720,2160,4128,5760,5312,2016,64,
 5040,15120,29280,43200,47616,32928,8128,128,40320,
 120960,236160,360000,435264,387072,201728,32640,
 256,362880,1088640,2136960,3326400,4249920,
 4314240,3121152,1226880,130816,512]