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A018178 as a simple table

n a(n)
0 1
1 2
2 3
3 6
4 12
5 22
6 41
7 76
8 141
9 261
10 484
11 898
12 1667
13 3092
14 5738
15 10648
16 19758
17 36664
18 68033
19 126243
20 234256
21 434686
22 806603
23 1496733
24 2777339
25 5153632
26 9563083
27 17745264
28 32928126
29 61101455
30 113379904

[1,2,3,6,12,22,41,76,141,261,484,898,1667,3092,
 5738,10648,19758,36664,68033,126243,234256,434686,
 806603,1496733,2777339,5153632,9563083,17745264,
 32928126,61101455,113379904]

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Last modified May 12 16:52 EDT 2024. Contains 372492 sequences. (Running on oeis4.)