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A025151 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 0
5 0
6 1
7 1
8 1
9 1
10 1
11 1
12 1
13 2
14 2
15 3
16 3
17 4
18 4
19 5
20 5
21 7
22 7
23 9
24 10
25 12
26 13
27 16
28 17
29 20
30 23
31 26
32 29
33 34
34 38
35 43
36 49
37 55
38 62
39 70
40 79
41 88
42 100
43 111
44 125
45 140
46 157
47 174
48 196
49 217
50 243
51 270
52 301
53 333
54 372
55 411
56 457
57 506
58 561
59 619
60 687
61 757
62 837
63 924
64 1019
65 1122
66 1238
67 1361
68 1498

[1,0,0,0,0,0,1,1,1,1,1,1,1,2,2,3,3,4,4,5,5,7,7,9,
 10,12,13,16,17,20,23,26,29,34,38,43,49,55,62,70,
 79,88,100,111,125,140,157,174,196,217,243,270,301,
 333,372,411,457,506,561,619,687,757,837,924,1019,
 1122,1238,1361,1498]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)