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A249453 as a simple table

n a(n)
0 4
1 3
2 4
3 9
4 22
5 51
6 112
7 237
8 490
9 999
10 2020
11 4065
12 8158
13 16347
14 32728
15 65493
16 131026
17 262095
18 524236
19 1048521
20 2097094
21 4194243
22 8388544
23 16777149
24 33554362
25 67108791
26 134217652
27 268435377
28 536870830
29 1073741739
30 2147483560
31 4294967205
32 8589934498

[4,3,4,9,22,51,112,237,490,999,2020,4065,8158,
 16347,32728,65493,131026,262095,524236,1048521,
 2097094,4194243,8388544,16777149,33554362,
 67108791,134217652,268435377,536870830,1073741739,
 2147483560,4294967205,8589934498]

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Last modified May 1 23:54 EDT 2024. Contains 372178 sequences. (Running on oeis4.)