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A239811 as a simple table

na(n)
12
223
31480
4510748
5884977259
68243207656791
7399696014140196630
8102140919909434198721245
9136329092264192919129397551406

[2,23,1480,510748,884977259,8243207656791,
 399696014140196630,102140919909434198721245,
 136329092264192919129397551406]