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A106793 as a simple table

na(n)
01
126
2650
315600
4358800
57893600
6165765600
73315312000
862990928000
91133836704000
1019275223968000
11308403583488000
124626053752320000
1364764752532480000
14841941782922240000
1510103301395066880000

[1,26,650,15600,358800,7893600,165765600,
 3315312000,62990928000,1133836704000,
 19275223968000,308403583488000,4626053752320000,
 64764752532480000,841941782922240000,
 10103301395066880000]