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A271437 as a simple table

na(n)
10
20
30
40
50
60
70
80
912
100
110
120
1312
14864
150
160
170
1812
191503
2041328
210
220
230
2412
251620
26114696
272009952
280
290
300
3112
321629
33148392
348913024
35116220672
360
370
380
3912
401629
41153984
4214979216
43847131696
448608449792
450
460
470
4812
491629
50154296
5116992846

[0,0,0,0,0,0,0,0,12,0,0,0,12,864,0,0,0,12,1503,
 41328,0,0,0,12,1620,114696,2009952,0,0,0,12,1629,
 148392,8913024,116220672,0,0,0,12,1629,153984,
 14979216,847131696,8608449792,0,0,0,12,1629,
 154296,16992846]