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A026003 as a simple table

n a(n)
0 1
1 1
2 3
3 5
4 13
5 25
6 63
7 129
8 321
9 681
10 1683
11 3653
12 8989
13 19825
14 48639
15 108545
16 265729
17 598417
18 1462563
19 3317445
20 8097453
21 18474633
22 45046719
23 103274625
24 251595969
25 579168825
26 1409933619
27 3256957317
28 7923848253
29 18359266785
30 44642381823

[1,1,3,5,13,25,63,129,321,681,1683,3653,8989,
 19825,48639,108545,265729,598417,1462563,3317445,
 8097453,18474633,45046719,103274625,251595969,
 579168825,1409933619,3256957317,7923848253,
 18359266785,44642381823]

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)