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A173885 as a simple table

na(n)
01
11
21
31
416
51
61
7208
8208
91
101
112080
1227040
132080
141
151
1619360
172516800
182516800
1919360
201
211
22176176
23213172960
242131729600
25213172960
26176176
271
281
291591408
3017522993488
311630986316960
321630986316960
3317522993488
341591408
351
361

[1,1,1,1,16,1,1,208,208,1,1,2080,27040,2080,1,1,
 19360,2516800,2516800,19360,1,1,176176,213172960,
 2131729600,213172960,176176,1,1,1591408,
 17522993488,1630986316960,1630986316960,
 17522993488,1591408,1,1]