cp's OEIS Frontend

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.

A122799 A P_7-stuttered arithmetic progression with a(n+1)=a(n) if n is not a heptagonal number, a(n+1)=a(n)+2 otherwise.

Table of values

n a(n)
1 1
2 1
3 3
4 5
5 7
6 9
7 11
8 11
9 13
10 15
11 17
12 19
13 21
14 23
15 25
16 27
17 29
18 31
19 31
20 33
21 35
22 37
23 39
24 41
25 43
26 45
27 47
28 49
29 51
30 53
31 55
32 57
33 59
34 61
35 61
36 63
37 65
38 67
39 69
40 71
41 73
42 75
43 77
44 79
45 81
46 83
47 85
48 87
49 89
50 91
51 93
52 95
53 97
54 99
55 101
56 101
57 103
58 105
59 107
60 109
61 111
62 113
63 115
64 117
65 119
66 121
67 123
68 125
69 127
70 129
71 131
72 133
73 135
74 137
75 139
76 141
77 143
78 145
79 147
80 149
81 151
82 151
83 153
84 155
85 157
86 159
87 161
88 163
89 165
90 167
91 169
92 171
93 173
94 175
95 177
96 179
97 181
98 183
99 185
100 187

List of values

[1, 1, 3, 5, 7, 9, 11, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 151, 153, 155, 157, 159, 161, 163, 165, 167, 169, 171, 173, 175, 177, 179, 181, 183, 185, 187]