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A183256 as a simple table

na(n)
12
21
33
43
57
68
717
826
955
1089
11170
12298
13585
141059
151988
163640
176943
1812990
1924469
2045663
2186454
22163324
23309092
24582651
251103457
262092206
273971963
287529743
2914293584
3027163872
3151678766
3298293571
33187034535
34356132703
35678651768

[2,1,3,3,7,8,17,26,55,89,170,298,585,1059,1988,
 3640,6943,12990,24469,45663,86454,163324,309092,
 582651,1103457,2092206,3971963,7529743,14293584,
 27163872,51678766,98293571,187034535,356132703,
 678651768]