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A271141 as a simple table

na(n)
10
20
30
40
51
60
70
81
944
100
110
121
1356
142529
150
160
171
1856
194560
20239700
210
220
231
2456
254890
26625280
2741288768
280
290
301
3156
324899
33778256
34158875520
3513536514992
360
370
381
3956
404899
41797680
42245558565
4378509767680
448663986363705
450
460
471
4856
494899
50798370

[0,0,0,0,1,0,0,1,44,0,0,1,56,2529,0,0,1,56,4560,
 239700,0,0,1,56,4890,625280,41288768,0,0,1,56,
 4899,778256,158875520,13536514992,0,0,1,56,4899,
 797680,245558565,78509767680,8663986363705,0,0,1,
 56,4899,798370]