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A306505 as a simple table

na(n)
01
12
24
39
429
5209
616352
7490013147
81392195548889993357
9789204635842035040527740846300252679

[1,2,4,9,29,209,16352,490013147,
 1392195548889993357,
 789204635842035040527740846300252679]