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A013987 as a simple table

n a(n)
0 1
1 0
2 1
3 1
4 2
5 3
6 5
7 8
8 13
9 21
10 34
11 54
12 88
13 141
14 228
15 367
16 592
17 954
18 1538
19 2479
20 3996
21 6441
22 10383
23 16736
24 26978
25 43486
26 70097
27 112991
28 182134
29 293587
30 473242
31 762833
32 1229634
33 1982084
34 3194982
35 5150088
36 8301584
37 13381575
38 21570168
39 34769609
40 56046190

[1,0,1,1,2,3,5,8,13,21,34,54,88,141,228,367,592,
 954,1538,2479,3996,6441,10383,16736,26978,43486,
 70097,112991,182134,293587,473242,762833,1229634,
 1982084,3194982,5150088,8301584,13381575,21570168,
 34769609,56046190]

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Last modified May 6 05:18 EDT 2021. Contains 343580 sequences. (Running on oeis4.)