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A000363 as a simple table

na(n)
45
561
6479
73111
818270
9101166
10540242
112819266
1214494859
1373802835
14373398489
151881341265
169453340172
1747417364268
18237571096820
191189405165908
205951965440609
2129775517732665
22148927275340835
23744793282001995

[5,61,479,3111,18270,101166,540242,2819266,
 14494859,73802835,373398489,1881341265,9453340172,
 47417364268,237571096820,1189405165908,
 5951965440609,29775517732665,148927275340835,
 744793282001995]