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A027404 as a simple table

n a(n)
0 1
1 17
2 425
3 13209
4 481593
5 19960329
6 921249873
7 46658112705
8 2564687821041
9 151696177306497
10 9588646038606201
11 644058017836810857
12 45753059704756733865
13 3423681133127801126649
14 268929096702949443999393

[1,17,425,13209,481593,19960329,921249873,
 46658112705,2564687821041,151696177306497,
 9588646038606201,644058017836810857,
 45753059704756733865,3423681133127801126649,
 268929096702949443999393]

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Last modified February 18 21:20 EST 2020. Contains 332028 sequences. (Running on oeis4.)