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A345991 as a simple table

na(n)
16
26
36
424
560
66
7210
824
9504
1060
11990
1224
131716
14210
1560
16336
174080
18504
195814
2060
21210
22990
2310626
2424
2513800
261716
2717550
28336
2921924
3060
3126970
323360
33990
344080
35210
36504
3746620
385814
391716
40120
4163960
42210
4374046
441320
45720
4610626
4797290
48336
49110544
5013800
514080
521716
53140556
5417550
55990

[6,6,6,24,60,6,210,24,504,60,990,24,1716,210,60,
 336,4080,504,5814,60,210,990,10626,24,13800,1716,
 17550,336,21924,60,26970,3360,990,4080,210,504,
 46620,5814,1716,120,63960,210,74046,1320,720,
 10626,97290,336,110544,13800,4080,1716,140556,
 17550,990]