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A366645 as a simple table

na(n)
01
10
20
31
44
510
624
767
8200
9586
101704
115049
1215232
1346284
14141240
15433696
161340500
174164830
1812993792
1940697472
20127941300
21403561902
221276763096
234050430502
2412882398456
2541068966204
26131211997496
27420056152498
281347272602056
294328764460928
3013931034024536

[1,0,0,1,4,10,24,67,200,586,1704,5049,15232,46284,
 141240,433696,1340500,4164830,12993792,40697472,
 127941300,403561902,1276763096,4050430502,
 12882398456,41068966204,131211997496,420056152498,
 1347272602056,4328764460928,13931034024536]