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A291875 as a simple table

n a(n)
0 1
1 -1
2 -1
3 -1
4 -2
5 -3
6 -6
7 -10
8 -19
9 -34
10 -63
11 -115
12 -213
13 -391
14 -723
15 -1333
16 -2463
17 -4547
18 -8403
19 -15522
20 -28686
21 -53006
22 -97963
23 -181042
24 -334606
25 -618415
26 -1142994
27 -2112545
28 -3904592
29 -7216810
30 -13338856
31 -24654268
32 -45568784
33 -84225393
34 -155675230

[1,-1,-1,-1,-2,-3,-6,-10,-19,-34,-63,-115,-213,
 -391,-723,-1333,-2463,-4547,-8403,-15522,-28686,
 -53006,-97963,-181042,-334606,-618415,-1142994,
 -2112545,-3904592,-7216810,-13338856,-24654268,
 -45568784,-84225393,-155675230]

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Last modified April 23 07:11 EDT 2024. Contains 371905 sequences. (Running on oeis4.)