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A299041 as a simple table

na(n)
11
21
312
430
520
61
760
8690
92940
105670
115040
121680
131
14252
158730
16103820
17581700
181767360
193087000
203099600
211663200
22369600
231
241020
2594890
262615340
2732186070
28214628400
29859992000
302189325600
313628409400
323903900000
332630628000
341009008000
35168168000
361
374092
38979530
3958061420
401411122300

[1,1,12,30,20,1,60,690,2940,5670,5040,1680,1,252,
 8730,103820,581700,1767360,3087000,3099600,
 1663200,369600,1,1020,94890,2615340,32186070,
 214628400,859992000,2189325600,3628409400,
 3903900000,2630628000,1009008000,168168000,1,4092,
 979530,58061420,1411122300]