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A017901 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 0
5 0
6 0
7 1
8 1
9 1
10 1
11 1
12 1
13 1
14 2
15 3
16 4
17 5
18 6
19 7
20 8
21 10
22 13
23 17
24 22
25 28
26 35
27 43
28 53
29 66
30 83
31 105
32 133
33 168
34 211
35 264
36 330
37 413
38 518
39 651
40 819
41 1030
42 1294
43 1624
44 2037
45 2555
46 3206
47 4025
48 5055
49 6349
50 7973
51 10010
52 12565
53 15771
54 19796
55 24851
56 31200
57 39173

[1,0,0,0,0,0,0,1,1,1,1,1,1,1,2,3,4,5,6,7,8,10,13,
 17,22,28,35,43,53,66,83,105,133,168,211,264,330,
 413,518,651,819,1030,1294,1624,2037,2555,3206,
 4025,5055,6349,7973,10010,12565,15771,19796,24851,
 31200,39173]

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Last modified April 24 19:37 EDT 2024. Contains 371963 sequences. (Running on oeis4.)