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A098815 as a simple table

n a(n)
1 -3
2 1
3 25
4 121
5 2041
6 8185
7 131065
8 524281
9 8388601
10 536870905
11 2147483641
12 137438953465
13 2199023255545
14 8796093022201
15 140737488355321
16 9007199254740985
17 576460752303423481
18 2305843009213693945
19 147573952589676412921
20 2361183241434822606841

[-3,1,25,121,2041,8185,131065,524281,8388601,
 536870905,2147483641,137438953465,2199023255545,
 8796093022201,140737488355321,9007199254740985,
 576460752303423481,2305843009213693945,
 147573952589676412921,2361183241434822606841]

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Last modified April 19 15:11 EDT 2024. Contains 371794 sequences. (Running on oeis4.)