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A091096 as a simple table

n a(n)
0 1
1 5
2 -15
3 125
4 -375
5 3125
6 -9375
7 78125
8 -234375
9 1953125
10 -5859375
11 48828125
12 -146484375
13 1220703125
14 -3662109375
15 30517578125
16 -91552734375
17 762939453125
18 -2288818359375
19 19073486328125
20 -57220458984375
21 476837158203125
22 -1430511474609375

[1,5,-15,125,-375,3125,-9375,78125,-234375,
 1953125,-5859375,48828125,-146484375,1220703125,
 -3662109375,30517578125,-91552734375,762939453125,
 -2288818359375,19073486328125,-57220458984375,
 476837158203125,-1430511474609375]

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Last modified April 16 19:05 EDT 2024. Contains 371751 sequences. (Running on oeis4.)