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.

A113653 Isolated semiprimes in the hexagonal spiral.

Table of values

n a(n)
1 6
2 51
3 69
4 82
5 91
6 183
7 194
8 221
9 249
10 265
11 287
12 289
13 309
14 314
15 319
16 323
17 355
18 371
19 403
20 417
21 437
22 469
23 478
24 511
25 517
26 519
27 533
28 579
29 589
30 649
31 681
32 689
33 731
34 749
35 758
36 807
37 838
38 849
39 926
40 943
41 951
42 961
43 965
44 979
45 1011
46 1018
47 1037
48 1055
49 1057
50 1067
51 1077
52 1099
53 1126
54 1145
55 1149
56 1154
57 1159

List of values

[6, 51, 69, 82, 91, 183, 194, 221, 249, 265, 287, 289, 309, 314, 319, 323, 355, 371, 403, 417, 437, 469, 478, 511, 517, 519, 533, 579, 589, 649, 681, 689, 731, 749, 758, 807, 838, 849, 926, 943, 951, 961, 965, 979, 1011, 1018, 1037, 1055, 1057, 1067, 1077, 1099, 1126, 1145, 1149, 1154, 1159]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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