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A181531 as a simple table

n a(n)
0 1
1 0
2 1
3 0
4 2
5 1
6 3
7 2
8 5
9 4
10 8
11 7
12 13
13 12
14 20
15 20
16 31
17 32
18 47
19 50
20 71
21 77
22 105
23 116
24 155
25 173
26 225
27 254
28 325
29 369
30 465
31 530
32 660
33 755
34 929
35 1066
36 1300
37 1493
38 1805
39 2076
40 2493
41 2867
42 3421
43 3934
44 4669
45 5368
46 6337
47 7282
48 8560
49 9828
50 11505
51 13198
52 15394
53 17641
54 20507
55 23475

[1,0,1,0,2,1,3,2,5,4,8,7,13,12,20,20,31,32,47,50,
 71,77,105,116,155,173,225,254,325,369,465,530,660,
 755,929,1066,1300,1493,1805,2076,2493,2867,3421,
 3934,4669,5368,6337,7282,8560,9828,11505,13198,
 15394,17641,20507,23475]

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Last modified October 14 05:08 EDT 2019. Contains 327995 sequences. (Running on oeis4.)