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A225945 as a simple table

na(n)
11
26
360
4136
5124796
63919272
718363918
8153037808
9965108649
103140421892
115961162423
1220437804784

[1,6,60,136,124796,3919272,18363918,153037808,
 965108649,3140421892,5961162423,20437804784]