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A081408 as a simple table

na(n)
01
11
21
31
41
56
67
78
89
910
1066
1184
12104
13126
14150
151056
161428
171872
182394
193000
2022176
2131416
2243056
2357456
2475000
25576576
26848232
271205568
281666224
292250000
3017873856
3127143424
3239783744
3356651616
3478750000
35643458816
361004306688
371511782272

[1,1,1,1,1,6,7,8,9,10,66,84,104,126,150,1056,1428,
 1872,2394,3000,22176,31416,43056,57456,75000,
 576576,848232,1205568,1666224,2250000,17873856,
 27143424,39783744,56651616,78750000,643458816,
 1004306688,1511782272]