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A101502 as a simple table

na(n)
01
10
24
30
448
532
6640
7896
88960
918432
10130048
11337920
121941504
135857280
1429605888
1598435072
16458424320
171624375296
187174881280
1926507476992
20113123524608
21429538672640
221792440008704
236929367695360
2428495396732928

[1,0,4,0,48,32,640,896,8960,18432,130048,337920,
 1941504,5857280,29605888,98435072,458424320,
 1624375296,7174881280,26507476992,113123524608,
 429538672640,1792440008704,6929367695360,
 28495396732928]