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A130915 as a simple table

na(n)
01
10
20
32
40
524
640
7720
82688
942560
10245376
114072320
1231672960
13569935872
145576263680
15109492807424
161290701905920
1727616577064960
18380852962029568
198845627365089280
20139696582370328576
213506062524305162240
2262387728088875499520
231684340707284076756992

[1,0,0,2,0,24,40,720,2688,42560,245376,4072320,
 31672960,569935872,5576263680,109492807424,
 1290701905920,27616577064960,380852962029568,
 8845627365089280,139696582370328576,
 3506062524305162240,62387728088875499520,
 1684340707284076756992]