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A287672 as a simple table

na(n)
01
11
22
35
415
552
6203
7877
84140
921147
10115975
11678570
124213596
1327643917
14190873448
151382311874
1610468191626
1782676728870
18679376431959
195796059673820
2051241781683988
21468639956185787
224426928995172738
2343131913020157751
24432877526792148982

[1,1,2,5,15,52,203,877,4140,21147,115975,678570,
 4213596,27643917,190873448,1382311874,10468191626,
 82676728870,679376431959,5796059673820,
 51241781683988,468639956185787,4426928995172738,
 43131913020157751,432877526792148982]