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A320073 as a simple table

n a(n)
1 1
2 7
3 63
4 504
5 4095
6 32697
7 262143
8 2096640
9 16777152
10 134213625
11 1073741823
12 8589901320
13 68719476735
14 549755551737
15 4398046506945
16 35184369991680
17 281474976710655
18 2251799796875328
19 18014398509481983
20 144115187941637640
21 1152921504606584769 

[1,7,63,504,4095,32697,262143,2096640,16777152,
 134213625,1073741823,8589901320,68719476735,
 549755551737,4398046506945,35184369991680,
 281474976710655,2251799796875328,
 18014398509481983,144115187941637640,
 1152921504606584769]

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Last modified June 8 09:36 EDT 2024. Contains 373217 sequences. (Running on oeis4.)