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A252080 as a simple table

n a(n)
1 64
2 322
3 3326
4 47266
5 1034546
6 35987921
7 1915241208
8 157183478333
9 19993599538566
10 3912790092731608
11 1178650827932347077
12 547811008058997697527
13 392513656335386815116037

[64,322,3326,47266,1034546,35987921,1915241208,
 157183478333,19993599538566,3912790092731608,
 1178650827932347077,547811008058997697527,
 392513656335386815116037]

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Last modified January 19 00:03 EST 2021. Contains 340262 sequences. (Running on oeis4.)