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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A071110 a(n) is the smallest integer >=0 we cannot obtain from n, n+1, n+2, n+3, n+4 and the operators +, -, *, /, using each number only once.

Table of values

n a(n)
0 29
1 76
2 141
3 172
4 193
5 197
6 205
7 211
8 245
9 181
10 162
11 85
12 86
13 69
14 71
15 61
16 62
17 67
18 52
19 53
20 58
21 58
22 58
23 59
24 62
25 45
26 46
27 49
28 20
29 51
30 7
31 22
32 10
33 7
34 10
35 7
36 7
37 7
38 7
39 15
40 12
41 13
42 7
43 7
44 7
45 7
46 7
47 7
48 7
49 7
50 7
51 7
52 7
53 7
54 10
55 7
56 7
57 7
58 7
59 7
60 7
61 10
62 7
63 7
64 7
65 7
66 7
67 7
68 7
69 7
70 7

List of values

[29, 76, 141, 172, 193, 197, 205, 211, 245, 181, 162, 85, 86, 69, 71, 61, 62, 67, 52, 53, 58, 58, 58, 59, 62, 45, 46, 49, 20, 51, 7, 22, 10, 7, 10, 7, 7, 7, 7, 15, 12, 13, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 10, 7, 7, 7, 7, 7, 7, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7]

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