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A201952 as a simple table

na(n)
11
21
35
424
5139
6945
77377
865016
9638418
106910650
1181747665
121049089470
1314516096009
14215419836359
153412889885571
1657492203734320
171026121982213480
1819342642266760680
19383995631680561234
208007915240045479980
21175020604366224762038
224000551483475536398178

[1,1,5,24,139,945,7377,65016,638418,6910650,
 81747665,1049089470,14516096009,215419836359,
 3412889885571,57492203734320,1026121982213480,
 19342642266760680,383995631680561234,
 8007915240045479980,175020604366224762038,
 4000551483475536398178]