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A107683 as a simple table

na(n)
11
21
33
411
535
6114
7407
81486
95414
1019923
1174230
12278462
131049318
143972395
1515101658
1657607431
17220391316
18845366406
193250192681
2012521965697

[1,1,3,11,35,114,407,1486,5414,19923,74230,278462,
 1049318,3972395,15101658,57607431,220391316,
 845366406,3250192681,12521965697]