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.

A114554 Numbers k such that the k-th heptagonal number is 4-almost prime.

Table of values

n a(n)
1 6
2 9
3 12
4 18
5 21
6 31
7 35
8 40
9 44
10 47
11 49
12 50
13 56
14 57
15 65
16 66
17 76
18 91
19 107
20 121
21 125
22 127
23 129
24 136
25 138
26 145
27 148
28 152
29 154
30 155
31 163
32 164
33 187
34 196
35 201
36 205
37 212
38 220
39 221
40 223
41 226
42 230
43 235
44 236
45 237
46 239
47 242
48 246
49 248
50 260
51 268
52 284
53 289
54 292
55 299
56 309

List of values

[6, 9, 12, 18, 21, 31, 35, 40, 44, 47, 49, 50, 56, 57, 65, 66, 76, 91, 107, 121, 125, 127, 129, 136, 138, 145, 148, 152, 154, 155, 163, 164, 187, 196, 201, 205, 212, 220, 221, 223, 226, 230, 235, 236, 237, 239, 242, 246, 248, 260, 268, 284, 289, 292, 299, 309]