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A202910 as a simple table

na(n)
18
2680
331984
41194376
544344428
61707628408
766085464308
82542636404496
997688506009926
103756426746800752
11144493565678435826
125557405757222316520
13213730533301348703138
148219904362839412920344
15316134938792029283711026

[8,680,31984,1194376,44344428,1707628408,
 66085464308,2542636404496,97688506009926,
 3756426746800752,144493565678435826,
 5557405757222316520,213730533301348703138,
 8219904362839412920344,316134938792029283711026]