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A236278 as a simple table

na(n)
142
2208
3208
41048
51770
61048
75328
815434
915434
105328
1127168
12137142
13232736
14137142
1527168
16138720
171226262
183604782
193604782
201226262
21138720
22708640
2311005062
2456299040
2598027150
2656299040
2711005062
28708640
293620768
3098896922

[42,208,208,1048,1770,1048,5328,15434,15434,5328,
 27168,137142,232736,137142,27168,138720,1226262,
 3604782,3604782,1226262,138720,708640,11005062,
 56299040,98027150,56299040,11005062,708640,
 3620768,98896922]