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A008551 as a simple table

na(n)
02
10
20
3128
40
5384
63648
71920
820448
971680
10125952
11537600
121445440
133756288
1411173440
1529955072
1679741908
17214759680
18564284736
191466972160
203794966880
219719376896
2224675685440
2362292331392
24156254486400
25389861188608

[2,0,0,128,0,384,3648,1920,20448,71680,125952,
 537600,1445440,3756288,11173440,29955072,79741908,
 214759680,564284736,1466972160,3794966880,
 9719376896,24675685440,62292331392,156254486400,
 389861188608]