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A007919 as a simple table

na(n)
11
21
31
42
53
68
715
81
9105
10384
11945
124
1310395
1446080
151
163
172027025
182560
1934459425
20192
215
223715891200
2313749310575
242
2581081
261961990553600
2735
2823040
29213458046676875
30128
316190283353629375
3212

[1,1,1,2,3,8,15,1,105,384,945,4,10395,46080,1,3,
 2027025,2560,34459425,192,5,3715891200,
 13749310575,2,81081,1961990553600,35,23040,
 213458046676875,128,6190283353629375,12]