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A070521 as a simple table

n a(n)
1 2
2 7
3 121
4 5461
5 12207031
6 2612138803
7 38771752331201
8 20587884010836553
9 1107867264956562636991
10 11111111111111111111111111111
11 19194342495775048050414684129181

[2,7,121,5461,12207031,2612138803,38771752331201,
 20587884010836553,1107867264956562636991,
 11111111111111111111111111111,
 19194342495775048050414684129181]

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Last modified May 24 04:20 EDT 2013. Contains 225613 sequences.