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A012819 as a simple table

na(n)
01
11
221
3837
460585
57048489
61201350909
7282008557677
887244033155153
934402407033544657
1016843665951415524837
1110025536600336492439061
127129473645057562412172537
135969969671887834658217008633

[1,1,21,837,60585,7048489,1201350909,282008557677,
 87244033155153,34402407033544657,
 16843665951415524837,10025536600336492439061,
 7129473645057562412172537,
 5969969671887834658217008633]