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A092692 as a simple table

na(n)
00
11
21
38
418
5184
6660
78448
842000
9648576
104142880
1174972160
12586776960
1312174658560
14113020427520
152643856588800
1628432576972800
17740051782041600
189056055981772800
19259500083163955200
203562946373482496000

[0,1,1,8,18,184,660,8448,42000,648576,4142880,
 74972160,586776960,12174658560,113020427520,
 2643856588800,28432576972800,740051782041600,
 9056055981772800,259500083163955200,
 3562946373482496000]