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A091197 as a simple table

n a(n)
0 1
1 1
2 45
3 189
4 405
5 31185
6 1658475
7 4209975
8 97692469875
9 65511420975
10 4396161144375
11 1613742832877175
12 1447106344699640625
13 316985199315159375
14 790515124238106783140625
15 845033408668321044046875
16 1693960980510228821015625
17 84913182070036240111050234375

[1,1,45,189,405,31185,1658475,4209975,97692469875,
 65511420975,4396161144375,1613742832877175,
 1447106344699640625,316985199315159375,
 790515124238106783140625,845033408668321044046875,
 1693960980510228821015625,
 84913182070036240111050234375]

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Last modified September 27 03:21 EDT 2020. Contains 337380 sequences. (Running on oeis4.)