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A252698 as a simple table

na(n)
00
15
220
380
4380
51820
69020
744720
8223220
91114280
105569580
1127838880
12139185380
13695882180
143479366180
1517396607680
1686982815180
17434912961620
182174563693820
1910872812899520
2054364058928020
21271820266801220
221359101306167220
236795506391650720

[0,5,20,80,380,1820,9020,44720,223220,1114280,
 5569580,27838880,139185380,695882180,3479366180,
 17396607680,86982815180,434912961620,
 2174563693820,10872812899520,54364058928020,
 271820266801220,1359101306167220,6795506391650720]