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A361570 as a simple table

na(n)
01
10
22
312
436
5240
62280
715120
8122640
91330560
1013335840
11136382400
121657212480
1320860519680
14262278656640
153585207225600
1652249374777600
17772773281280000
1811907924610982400
19193962388523904000
203253343368231756800
2156051640629816832000

[1,0,2,12,36,240,2280,15120,122640,1330560,
 13335840,136382400,1657212480,20860519680,
 262278656640,3585207225600,52249374777600,
 772773281280000,11907924610982400,
 193962388523904000,3253343368231756800,
 56051640629816832000]