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A252318 as a simple table

na(n)
115269
25029
318820
497191
5505062
62670867
714105723
874390225
9393421805
102079994660
1110983499803
1258012069543
13306545373892
141619740161782
158557028038444
1645206323422740
17238837210761031
181261858577288398

[15269,5029,18820,97191,505062,2670867,14105723,
 74390225,393421805,2079994660,10983499803,
 58012069543,306545373892,1619740161782,
 8557028038444,45206323422740,238837210761031,
 1261858577288398]