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A064725 as a simple table

na(n)
10
20
32
43
55
66
713
810
919
1016
1189
1214
13233
1442
1568
1657
171597
1842
19150
2060
21436
22288
2328657
2446
253011
26754
27181
28326
29514229
30114
312974
322264
3319892
345168
35141979
36160
372443
389499
39135956
402228
4162158
42680
43433494437
44641
45109526
4629257
472971215073

[0,0,2,3,5,6,13,10,19,16,89,14,233,42,68,57,1597,
 42,150,60,436,288,28657,46,3011,754,181,326,
 514229,114,2974,2264,19892,5168,141979,160,2443,
 9499,135956,2228,62158,680,433494437,641,109526,
 29257,2971215073]