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A101304 as a simple table

n a(n)
1 9
2 17
3 65
4 257
5 4097
6 16385
7 262145
8 1048577
9 16777217
10 1073741825
11 4294967297
12 274877906945
13 4398046511105
14 17592186044417
15 281474976710657
16 18014398509481985
17 1152921504606846977
18 4611686018427387905
19 295147905179352825857
20 4722366482869645213697

[9,17,65,257,4097,16385,262145,1048577,16777217,
 1073741825,4294967297,274877906945,4398046511105,
 17592186044417,281474976710657,18014398509481985,
 1152921504606846977,4611686018427387905,
 295147905179352825857,4722366482869645213697]

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Last modified February 25 08:21 EST 2020. Contains 332221 sequences. (Running on oeis4.)