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A219229 as a simple table

na(n)
01
11
22
34
49
520
645
797
8217
9476
101043
112256
124890
1310540
1422695
1548614
16103856
17221103
18469738
19995299
202104514
214439410
229345471
2319631897
2441162937
2586148416
26179987656
27375411910
28781773332
291625473202
303374684346
316996168098
3214483902403
3329945326755

[1,1,2,4,9,20,45,97,217,476,1043,2256,4890,10540,
 22695,48614,103856,221103,469738,995299,2104514,
 4439410,9345471,19631897,41162937,86148416,
 179987656,375411910,781773332,1625473202,
 3374684346,6996168098,14483902403,29945326755]