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A298279 as a simple table

na(n)
18
23336
3285280
422110710
51794078025
6145597697355
711799327975543
8956310372633436
977508769959888329
106282060733319747867
11509159008435129806085
1241267175589185662281824
133344691468438566682506990

[8,3336,285280,22110710,1794078025,145597697355,
 11799327975543,956310372633436,77508769959888329,
 6282060733319747867,509159008435129806085,
 41267175589185662281824,3344691468438566682506990]