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A239556 as a simple table

na(n)
01
11
21
32
44
58
616
731
860
9117
10228
11441
12860
131678
143267
156368
1612413
1724192
1847158
1991929
20179190
21349306
22680925
231327341
242587450
255043845
269832184
2719166364
2837361945
2972831417
30141973854
31276756612
32539495115
331051664254
342050060645
353996283405

[1,1,1,2,4,8,16,31,60,117,228,441,860,1678,3267,
 6368,12413,24192,47158,91929,179190,349306,680925,
 1327341,2587450,5043845,9832184,19166364,37361945,
 72831417,141973854,276756612,539495115,1051664254,
 2050060645,3996283405]