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A268452 as a simple table

na(n)
14
216
361
4229
5852
63146
711536
842032
9152254
10548568
111966757
127019311
1324946486
1488313632
15311507619
161095064315
173837407016
1813407618832
1946715533678
20162345449332
21562801287366
221946559269050
236717910370343
2423136984979001

[4,16,61,229,852,3146,11536,42032,152254,548568,
 1966757,7019311,24946486,88313632,311507619,
 1095064315,3837407016,13407618832,46715533678,
 162345449332,562801287366,1946559269050,
 6717910370343,23136984979001]