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.

A103982 Indices of octahedral numbers (A005900) which are semiprimes.

Table of values

n a(n)
1 2
2 5
3 6
4 9
5 13
6 17
7 19
8 21
9 23
10 31
11 33
12 53
13 71
14 87
15 89
16 93
17 113
18 123
19 127
20 157
21 163
22 167
23 177
24 181
25 197
26 201
27 219
28 229
29 237
30 321
31 327
32 347
33 373
34 393
35 401
36 409
37 417
38 419
39 449
40 487
41 489
42 503
43 509
44 519
45 523
46 537
47 541
48 563
49 571
50 577
51 597
52 599
53 633
54 647
55 699
56 751

List of values

[2, 5, 6, 9, 13, 17, 19, 21, 23, 31, 33, 53, 71, 87, 89, 93, 113, 123, 127, 157, 163, 167, 177, 181, 197, 201, 219, 229, 237, 321, 327, 347, 373, 393, 401, 409, 417, 419, 449, 487, 489, 503, 509, 519, 523, 537, 541, 563, 571, 577, 597, 599, 633, 647, 699, 751]