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A286830 as a simple table

n a(n)
0 1
1 1
2 7
3 7
4 31
5 63
6 127
7 63
8 511
9 447
10 2047
11 4095
12 8191
13 3583
14 32767
15 8191
16 131071
17 53247
18 524287
19 126975
20 2097151
21 1023999
22 8388607
23 3735551
24 33554431
25 7372799
26 134217727
27 65273855
28 536870911
29 117571583
30 2147483647
31 1041235967
32 8589934591
33 1880883199

[1,1,7,7,31,63,127,63,511,447,2047,4095,8191,3583,
 32767,8191,131071,53247,524287,126975,2097151,
 1023999,8388607,3735551,33554431,7372799,
 134217727,65273855,536870911,117571583,2147483647,
 1041235967,8589934591,1880883199]

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Last modified March 29 05:16 EDT 2024. Contains 371264 sequences. (Running on oeis4.)