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.

A279831 Numbers that are centered k-gonal numbers for two or more values of k.

Table of values

n a(n)
1 1
2 7
3 13
4 16
5 19
6 22
7 25
8 31
9 37
10 43
11 46
12 49
13 55
14 61
15 64
16 67
17 73
18 76
19 79
20 85
21 91
22 97
23 103
24 106
25 109
26 111
27 115
28 121
29 127
30 133
31 136
32 139
33 141
34 145
35 148
36 151
37 154
38 157
39 163
40 166
41 169
42 172
43 175
44 181
45 187
46 190
47 191
48 193
49 196
50 199
51 205
52 211
53 217
54 221
55 223
56 226
57 229
58 232
59 235
60 241
61 247
62 253
63 256

List of values

[1, 7, 13, 16, 19, 22, 25, 31, 37, 43, 46, 49, 55, 61, 64, 67, 73, 76, 79, 85, 91, 97, 103, 106, 109, 111, 115, 121, 127, 133, 136, 139, 141, 145, 148, 151, 154, 157, 163, 166, 169, 172, 175, 181, 187, 190, 191, 193, 196, 199, 205, 211, 217, 221, 223, 226, 229, 232, 235, 241, 247, 253, 256]