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A018182 as a simple table

n a(n)
0 1
1 2
2 4
3 7
4 13
5 23
6 44
7 81
8 151
9 283
10 529
11 991
12 1855
13 3472
14 6499
15 12167
16 22779
17 42646
18 79840
19 149475
20 279841
21 523911
22 980850
23 1836319
24 3437903
25 6436343
26 12049937
27 22559544
28 42235330
29 79071768
30 148035889

[1,2,4,7,13,23,44,81,151,283,529,991,1855,3472,
 6499,12167,22779,42646,79840,149475,279841,523911,
 980850,1836319,3437903,6436343,12049937,22559544,
 42235330,79071768,148035889]

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Last modified December 6 15:49 EST 2021. Contains 349564 sequences. (Running on oeis4.)