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A107515 as a simple table

na(n)
01
1760
2105680
35802600
4173706400
53335980632
645416596080
7469222570440
83865485537600
926359226243000
10153175255755792
11776224339239720
123494649628001760
1314191735033679640
1452642318181020080
15180240670086160008
16574673195347190400
171719066064842900600

[1,760,105680,5802600,173706400,3335980632,
 45416596080,469222570440,3865485537600,
 26359226243000,153175255755792,776224339239720,
 3494649628001760,14191735033679640,
 52642318181020080,180240670086160008,
 574673195347190400,1719066064842900600]