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A068097 as a simple table

na(n)
11
210
3105
410585
5105858525
610585852585252500
7105858525852525008525250025000000
810585852585252500852525002500000085252500250000002500000000000000

[1,10,105,10585,105858525,10585852585252500,
 105858525852525008525250025000000,
 10585852585252500852525002500000085252500250000002\
 500000000000000]