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A211249 as a simple table

na(n)
01
11
24
321
4126
5819
65611
739900
8291719
92179181
1016560175
11127617168
12994951887
137833555324
1462196300997
15497425570173
164003607595960
1732404662671330
18263586896132154
192153631763231319
2017666722629907960
21145449082369322208
221201414340736684702

[1,1,4,21,126,819,5611,39900,291719,2179181,
 16560175,127617168,994951887,7833555324,
 62196300997,497425570173,4003607595960,
 32404662671330,263586896132154,2153631763231319,
 17666722629907960,145449082369322208,
 1201414340736684702]