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A231080 as a simple table

na(n)
10
20
30
40
52
60
70
814
92
100
110
1240
1350
1416
150
160
17356
18136
19784
2034
210
220
231840
242820
256400
265098
27154
280
290
3010128
3138000
32523936
3371944
3454426
35432
360
370
3860808
39421920
4018937480
4118655220
421866192
43441392
441618
450
460
47337016
486118120
49696453136

[0,0,0,0,2,0,0,14,2,0,0,40,50,16,0,0,356,136,784,
 34,0,0,1840,2820,6400,5098,154,0,0,10128,38000,
 523936,71944,54426,432,0,0,60808,421920,18937480,
 18655220,1866192,441392,1618,0,0,337016,6118120,
 696453136]