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A289939 as a simple table

n a(n)
0 1
1 2
2 7
3 15
4 28
5 60
6 124
7 252
8 496
9 1008
10 2032
11 4080
12 8176
13 16368
14 32752
15 65520
16 130816
17 261888
18 524032
19 1048320
20 2096896
21 4194048
22 8388352
23 16776960
24 33554176
25 67108608
26 134217472
27 268435200
28 536870656
29 1073741568
30 2147483392
31 4294967040
32 8589869056

[1,2,7,15,28,60,124,252,496,1008,2032,4080,8176,
 16368,32752,65520,130816,261888,524032,1048320,
 2096896,4194048,8388352,16776960,33554176,
 67108608,134217472,268435200,536870656,1073741568,
 2147483392,4294967040,8589869056]

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Last modified April 24 05:47 EDT 2024. Contains 371918 sequences. (Running on oeis4.)