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A251759 as a simple table

na(n)
00
10
20
30
40
50
60
70
81
90
101
112
124
138
1416
1532
1664
17128
18256
19511
201022
212043
224084
238164
2416320
2532624
2665216
27130368
28260608
29520960
301041409
312081796
324161549
338319014
3416629864
3533243408
3666454192
37132843168
38265555968
39530851328
401061181696
412121321983

[0,0,0,0,0,0,0,0,1,0,1,2,4,8,16,32,64,128,256,511,
 1022,2043,4084,8164,16320,32624,65216,130368,
 260608,520960,1041409,2081796,4161549,8319014,
 16629864,33243408,66454192,132843168,265555968,
 530851328,1061181696,2121321983]