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A300913 as a simple table

na(n)
01
11
21
32
44
57
618
737
896
9239
10658
111810
125358
1316057
1450373
15161811
16536964
171826151
186380481
1922822280
2083587920
21312954111
221197178941
234674642341
2418620255306
2575606404857
26312763294254
271317356836235
285646694922172
2924618969819915
30109125629486233
31491554330852608

[1,1,1,2,4,7,18,37,96,239,658,1810,5358,16057,
 50373,161811,536964,1826151,6380481,22822280,
 83587920,312954111,1197178941,4674642341,
 18620255306,75606404857,312763294254,
 1317356836235,5646694922172,24618969819915,
 109125629486233,491554330852608]