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A206404 as a simple table

n a(n)
1 1
2 3
3 26
4 364
5 7074
6 176108
7 5348132
8 191725840
9 7924856460
10 371061933552
11 19411323110904
12 1122067341369984
13 71024428188382200
14 4885895673623299008
15 362955565203398550768
16 28957167717593649778176
17 2469386593299982674585744
18 224154175905500071395278592

[1,3,26,364,7074,176108,5348132,191725840,
 7924856460,371061933552,19411323110904,
 1122067341369984,71024428188382200,
 4885895673623299008,362955565203398550768,
 28957167717593649778176,2469386593299982674585744,
 224154175905500071395278592]

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Last modified January 21 05:57 EST 2022. Contains 350473 sequences. (Running on oeis4.)