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A132750 as a simple table

n a(n)
0 1
1 4
2 9
3 21
4 49
5 113
6 257
7 577
8 1281
9 2817
10 6145
11 13313
12 28673
13 61441
14 131073
15 278529
16 589825
17 1245185
18 2621441
19 5505025
20 11534337
21 24117249
22 50331649
23 104857601
24 218103809
25 452984833
26 939524097
27 1946157057
28 4026531841

[1,4,9,21,49,113,257,577,1281,2817,6145,13313,
 28673,61441,131073,278529,589825,1245185,2621441,
 5505025,11534337,24117249,50331649,104857601,
 218103809,452984833,939524097,1946157057,
 4026531841]

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Last modified April 24 12:37 EDT 2024. Contains 371937 sequences. (Running on oeis4.)