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A216398 as a simple table

na(n)
122786974071
273737982962
3372647999625
4741999999540
5100000000000
62434703999430
71876917059570
815312327487352
9360000000000

[22786974071,73737982962,372647999625,
 741999999540,100000000000,2434703999430,
 1876917059570,15312327487352,360000000000]