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A099920 as a simple table

n a(n)
0 0
1 2
2 3
3 8
4 15
5 30
6 56
7 104
8 189
9 340
10 605
11 1068
12 1872
13 3262
14 5655
15 9760
16 16779
17 28746
18 49096
19 83620
20 142065
21 240812
22 407353
23 687768
24 1159200
25 1950650
26 3277611
27 5499704
28 9216519
29 15426870
30 25793240
31 43080608
32 71884197
33 119835652

[0,2,3,8,15,30,56,104,189,340,605,1068,1872,3262,
 5655,9760,16779,28746,49096,83620,142065,240812,
 407353,687768,1159200,1950650,3277611,5499704,
 9216519,15426870,25793240,43080608,71884197,
 119835652]

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Last modified October 17 19:24 EDT 2019. Contains 328127 sequences. (Running on oeis4.)