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A005219 as a simple table

na(n)
10
20
30
40
50
62
74
815
936
10108
11276
12771
132044
145622
1515204
1641835
17114708
18317382
19879008
202447951
216833084
2219146910
2353786076
24151537847
25427946916
261211440440
273436543336
289768382171
2927817787344
3079356481542

[0,0,0,0,0,2,4,15,36,108,276,771,2044,5622,15204,
 41835,114708,317382,879008,2447951,6833084,
 19146910,53786076,151537847,427946916,1211440440,
 3436543336,9768382171,27817787344,79356481542]