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A300457 as a simple table

n a(n)
0 1
1 -1
2 -3
3 -1
4 25
5 624
6 9871
7 170470
8 3027249
9 55077245
10 979330606
11 15079702923
12 94670678245
13 -7958168036625
14 -626145997536240
15 -34564907982551791
16 -1733699815491494303
17 -84294315853736719077
18 -4067859614343931897505
19 -196552300464314521511610
20 -9519733465269825759734169

[1,-1,-3,-1,25,624,9871,170470,3027249,55077245,
 979330606,15079702923,94670678245,-7958168036625,
 -626145997536240,-34564907982551791,
 -1733699815491494303,-84294315853736719077,
 -4067859614343931897505,-196552300464314521511610,
 -9519733465269825759734169]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)