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A239176 as a simple table

na(n)
16018
2148820
336216324
44845741276
5733415243746
6108383467365104
716126266923705212
82391741572658733884
9355190496243814649808
1052737580742371581757500
117829215010328481095814762

[6018,148820,36216324,4845741276,733415243746,
 108383467365104,16126266923705212,
 2391741572658733884,355190496243814649808,
 52737580742371581757500,7829215010328481095814762]