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A012535 as a simple table

na(n)
02
18
2200
39088
4815008
5107966080
621110274432
75547859611648
81915915213103616
9835475489428146176
10450640330168225851392
11294111441801356743442432
12228643425697131126294224896

[2,8,200,9088,815008,107966080,21110274432,
 5547859611648,1915915213103616,835475489428146176,
 450640330168225851392,294111441801356743442432,
 228643425697131126294224896]