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A358852 as a simple table

na(n)
01
11
22
312
432
5140
61512
76384
844928
9749088
104299840
1142546240
12974695680
137061783040
1490598072320
152640888230400
1623099489280000
17364696083763200
1812881138586624000
19132004210918809600
202475855534329856000
21102587486964092928000
221205260977814806528000

[1,1,2,12,32,140,1512,6384,44928,749088,4299840,
 42546240,974695680,7061783040,90598072320,
 2640888230400,23099489280000,364696083763200,
 12881138586624000,132004210918809600,
 2475855534329856000,102587486964092928000,
 1205260977814806528000]