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A017836 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 1
5 1
6 1
7 1
8 2
9 3
10 4
11 5
12 7
13 10
14 14
15 18
16 25
17 35
18 49
19 66
20 90
21 124
22 172
23 236
24 323
25 443
26 610
27 839
28 1152
29 1581
30 2173
31 2987
32 4104
33 5636
34 7743
35 10640
36 14620
37 20084
38 27591
39 37908
40 52085
41 71559
42 98311
43 135067

[1,0,0,0,1,1,1,1,2,3,4,5,7,10,14,18,25,35,49,66,
 90,124,172,236,323,443,610,839,1152,1581,2173,
 2987,4104,5636,7743,10640,14620,20084,27591,37908,
 52085,71559,98311,135067]

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Last modified July 16 23:11 EDT 2024. Contains 374360 sequences. (Running on oeis4.)