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A126869 as a simple table

na(n)
01
10
22
30
46
50
620
70
870
90
10252
110
12924
130
143432
150
1612870
170
1848620
190
20184756
210
22705432
230
242704156
250
2610400600
270
2840116600
290
30155117520
310
32601080390
330
342333606220
350
369075135300
370
3835345263800
390
40137846528820
410
42538257874440
430

[1,0,2,0,6,0,20,0,70,0,252,0,924,0,3432,0,12870,0,
 48620,0,184756,0,705432,0,2704156,0,10400600,0,
 40116600,0,155117520,0,601080390,0,2333606220,0,
 9075135300,0,35345263800,0,137846528820,0,
 538257874440,0]