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A271137 as a simple table

na(n)
10
21
344
42529
5239700
641288768
713536514992
88663986363705
910993523599196564
1027931583281337318808
11143073130086443218161862
121484701531903686677651991942
1331325520846551262114728413158870

[0,1,44,2529,239700,41288768,13536514992,
 8663986363705,10993523599196564,
 27931583281337318808,143073130086443218161862,
 1484701531903686677651991942,
 31325520846551262114728413158870]