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A228521 as a simple table

na(n)
170
21372210
326898060350
4527255777608490
510335267725783560630
6202591917433553577860770
73971206755197249507443252910
877843594612784567411349065681050
91525890137628596335200014878036689190
1029910498399952150749806124227926115821330

[70,1372210,26898060350,527255777608490,
 10335267725783560630,202591917433553577860770,
 3971206755197249507443252910,
 77843594612784567411349065681050,
 1525890137628596335200014878036689190,
 29910498399952150749806124227926115821330]