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A000564 as a simple table

na(n)
620
7371
82588
911097
1035645
1194457
12218124
13454220
14872648
151571715
162684936
174388567
186909867
1910536089
2015624200
2122611330
2232025950
2344499779
2460780420
2581744725
26108412889
27141963273
28183747956
29235309016
30298395540

[20,371,2588,11097,35645,94457,218124,454220,
 872648,1571715,2684936,4388567,6909867,10536089,
 15624200,22611330,32025950,44499779,60780420,
 81744725,108412889,141963273,183747956,235309016,
 298395540]