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A259330 as a simple table

na(n)
11
21
31
4202
52569966024555163105
676230976900860740792605252290337123070878181006452224000000000000

[1,1,1,202,2569966024555163105,
 76230976900860740792605252290337123070878181006452\
 224000000000000]