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A175148 as a simple table

na(n)
00
11
21
32
43
58
613
722
843
979
10140
11258
12480
13877
141646
153083
165788
1710940
1820623
1939191
2074441
21141826
22270992
23518323
24993869
251910174
263674150
277078905
2813654626
2926375091
3051007193
3198748888
32191381911

[0,1,1,2,3,8,13,22,43,79,140,258,480,877,1646,
 3083,5788,10940,20623,39191,74441,141826,270992,
 518323,993869,1910174,3674150,7078905,13654626,
 26375091,51007193,98748888,191381911]