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A018063 as a simple table

na(n)
01
11
22
34
47
511
618
730
849
979
10129
11210
12343
13557
14907
151476
162401
173905
186352
1910332
2016807
2127337
2244467
2372329
24117649
25191365
26311269
27506304
28823543
291339555
302178889
313544131
325764801
339376890

[1,1,2,4,7,11,18,30,49,79,129,210,343,557,907,
 1476,2401,3905,6352,10332,16807,27337,44467,72329,
 117649,191365,311269,506304,823543,1339555,
 2178889,3544131,5764801,9376890]