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A258566 as a simple table

na(n)
11
23
32
415
510
66
7105
870
942
1030
111155
12770
13462
14330
15210
1615015
1710010
186006
194290
202730
212310
22255255
23170170
24102102
2572930
2646410
2739270
2830030
294849845
303233230
311939938
321385670
33881790
34746130
35570570
36510510

[1,3,2,15,10,6,105,70,42,30,1155,770,462,330,210,
 15015,10010,6006,4290,2730,2310,255255,170170,
 102102,72930,46410,39270,30030,4849845,3233230,
 1939938,1385670,881790,746130,570570,510510]