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A266934 as a simple table

na(n)
12
26
321
4115
5816
67185
768890
8671796
96347005
1056180274
11460040399
123470013146
1324151911854
14155703390684

[2,6,21,115,816,7185,68890,671796,6347005,
 56180274,460040399,3470013146,24151911854,
 155703390684]