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A258936 as a simple table

n a(n)
0 -1
1 -3
2 7
3 -15
4 89
5 -63
6 121
7 -255
8 3521
9 -13119
10 18273
11 -4095
12 -40319
13 -16383
14 425089
15 -2676735
16 6141953
17 -262143
18 -22487551
19 -1048575
20 173791233
21 -356171775
22 176138241
23 -16777215
24 2378907649
25 -5430575103
26 3355336705
27 -38913703935
28 164745740289
29 -1073741823
30 -770681831423
31 -4294967295
32 4113638096897
33 -3796520402943
34 1133869137921
35 -38542231207935
36 87257121292289
37 -274877906943

[-1,-3,7,-15,89,-63,121,-255,3521,-13119,18273,
 -4095,-40319,-16383,425089,-2676735,6141953,
 -262143,-22487551,-1048575,173791233,-356171775,
 176138241,-16777215,2378907649,-5430575103,
 3355336705,-38913703935,164745740289,-1073741823,
 -770681831423,-4294967295,4113638096897,
 -3796520402943,1133869137921,-38542231207935,
 87257121292289,-274877906943]

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Last modified May 19 12:15 EDT 2024. Contains 372692 sequences. (Running on oeis4.)