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A077802 as a simple table

na(n)
01
12
27
318
441
588
6183
7374
8757
91524
103059
116130
1212273
1324560
1449135
1598286
16196589
17393196
18786411
191572842
203145705
216291432
2212582887
2325165798
2450331621
25100663268
26201326563
27402653154
28805306337
291610612704

[1,2,7,18,41,88,183,374,757,1524,3059,6130,12273,
 24560,49135,98286,196589,393196,786411,1572842,
 3145705,6291432,12582887,25165798,50331621,
 100663268,201326563,402653154,805306337,
 1610612704]