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A281828 as a simple table

na(n)
13
24
36
47
512
613
723
828
942
1051
1166
12247
13291
14623
153429
163892
174416
187366
197991
208737
2110151
2210209
2340129
2441604
2550818
2668088

[3,4,6,7,12,13,23,28,42,51,66,247,291,623,3429,
 3892,4416,7366,7991,8737,10151,10209,40129,41604,
 50818,68088]