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A049859 as a simple table

n a(n)
0 0
1 1
2 3
3 4
4 7
5 12
6 23
7 43
8 81
9 151
10 282
11 526
12 982
13 1833
14 3422
15 6388
16 11925
17 22261
18 41556
19 77575
20 144814
21 270333
22 504647
23 942055
24 1758591
25 3282868
26 6128328
27 11440120
28 21355963
29 39866466
30 74421140
31 138926437
32 259342371
33 484130068

[0,1,3,4,7,12,23,43,81,151,282,526,982,1833,3422,
 6388,11925,22261,41556,77575,144814,270333,504647,
 942055,1758591,3282868,6128328,11440120,21355963,
 39866466,74421140,138926437,259342371,484130068]

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Last modified January 25 04:34 EST 2022. Contains 350565 sequences. (Running on oeis4.)