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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.

A226913 Not of form sum_{i=0..n-1} (-1)^i prime(n-i), where prime(k) denotes the k-th prime.

Table of values

n a(n)
1 6
2 9
3 10
4 11
5 14
6 15
7 17
8 20
9 23
10 24
11 25
12 28
13 30
14 31
15 34
16 35
17 36
18 37
19 41
20 42
21 43
22 46
23 47
24 48
25 50
26 51
27 55
28 58
29 59
30 60
31 62
32 64
33 66
34 67
35 68
36 69
37 72
38 73
39 74
40 75
41 78
42 80
43 82
44 84
45 85
46 87
47 88
48 89
49 90
50 91
51 93
52 94
53 98
54 99
55 100
56 101
57 104
58 105
59 106
60 107
61 108
62 109
63 110
64 111
65 114
66 115
67 117
68 118
69 120
70 122
71 123
72 124

List of values

[6, 9, 10, 11, 14, 15, 17, 20, 23, 24, 25, 28, 30, 31, 34, 35, 36, 37, 41, 42, 43, 46, 47, 48, 50, 51, 55, 58, 59, 60, 62, 64, 66, 67, 68, 69, 72, 73, 74, 75, 78, 80, 82, 84, 85, 87, 88, 89, 90, 91, 93, 94, 98, 99, 100, 101, 104, 105, 106, 107, 108, 109, 110, 111, 114, 115, 117, 118, 120, 122, 123, 124]