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A281163 as a simple table

na(n)
10
2346
317806
4136138
5865821
64716420
722796763
8102696802
9438513869
101799338352
117158291149
1227787053444
13105726471706
14395690330122
151460576127556
165328417840400
1719243721441580
1868891667482710

[0,346,17806,136138,865821,4716420,22796763,
 102696802,438513869,1799338352,7158291149,
 27787053444,105726471706,395690330122,
 1460576127556,5328417840400,19243721441580,
 68891667482710]