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A210986 as a simple table

na(n)
12
219
3216
42725
536446
6505861
77204874
8104592937
91540820542
1022964779660
11345532572678
125239988770268
1379992676367108
141228088671826973
1518946775782611174
16293560133910477776
174565553929115769162
1871242712815411950635

[2,19,216,2725,36446,505861,7204874,104592937,
 1540820542,22964779660,345532572678,5239988770268,
 79992676367108,1228088671826973,18946775782611174,
 293560133910477776,4565553929115769162,
 71242712815411950635]