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A049853 as a simple table

na(n)
01
12
22
33
46
511
619
733
858
9102
10179
11314
12551
13967
141697
152978
165226
179171
1816094
1928243
2049563
2186977
22152634
23267854
24470051
25824882
261447567
272540303
284457921
297823106
3013728594
3124092003
3242278518
3374193627

[1,2,2,3,6,11,19,33,58,102,179,314,551,967,1697,
 2978,5226,9171,16094,28243,49563,86977,152634,
 267854,470051,824882,1447567,2540303,4457921,
 7823106,13728594,24092003,42278518,74193627]