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A319871 as a simple table

na(n)
17
242
3210
4840
52520
65040
75040
85054
95222
107224
1129064
12245280
132167200
1417302320
1517302341
1617302740
1717310300
1817445960
1919744200
2056372400
21603353520
22603353548
23603354276
24603373176
25603844920
26615147120
27874606320
286570915120
296570915155
306570916310

[7,42,210,840,2520,5040,5040,5054,5222,7224,29064,
 245280,2167200,17302320,17302341,17302740,
 17310300,17445960,19744200,56372400,603353520,
 603353548,603354276,603373176,603844920,615147120,
 874606320,6570915120,6570915155,6570916310]