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A000440 as a simple table

na(n)
49
530
6180
7980
88326
970272
10695690
117518720
1289193276
131148241458
1415947668065
15237613988040
163780133322620
1763945806121448
181146081593303784
1921693271558730304
20432411684714253605
219053476937543082240
22198641103956454088919

[9,30,180,980,8326,70272,695690,7518720,89193276,
 1148241458,15947668065,237613988040,3780133322620,
 63945806121448,1146081593303784,21693271558730304,
 432411684714253605,9053476937543082240,
 198641103956454088919]