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A166905 as a simple table

na(n)
01
11
21
36
44
51
654
733
89
91
10640
11380
12108
1316
141
159380
165510
171610
18270
1925
201
21163576
2295732
2328560
245148
25570
2636
271
283305484
291933288
30586320
31110929
3213650
331071
3449
351
3675915708
3744437080
3813658904
392677008
40353600
4131624
421848
4364
441
451952409954

[1,1,1,6,4,1,54,33,9,1,640,380,108,16,1,9380,5510,
 1610,270,25,1,163576,95732,28560,5148,570,36,1,
 3305484,1933288,586320,110929,13650,1071,49,1,
 75915708,44437080,13658904,2677008,353600,31624,
 1848,64,1,1952409954]