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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.

A158866 Indices of twin primes if the sum of these twin primes+1 is an upper twin prime.

Table of values

n a(n)
1 2
2 5
3 30
4 31
5 66
6 73
7 88
8 91
9 141
10 147
11 217
12 513
13 607
14 637
15 743
16 760
17 784
18 845
19 856
20 911
21 920
22 938
23 949
24 958
25 994
26 1015
27 1031
28 1092
29 1150
30 1246
31 1373
32 1470
33 1553
34 1586
35 1768
36 1814
37 1871
38 2017
39 2029
40 2129
41 2261
42 2271
43 2331
44 2370
45 2458
46 2488
47 2510
48 2545
49 2579

List of values

[2, 5, 30, 31, 66, 73, 88, 91, 141, 147, 217, 513, 607, 637, 743, 760, 784, 845, 856, 911, 920, 938, 949, 958, 994, 1015, 1031, 1092, 1150, 1246, 1373, 1470, 1553, 1586, 1768, 1814, 1871, 2017, 2029, 2129, 2261, 2271, 2331, 2370, 2458, 2488, 2510, 2545, 2579]

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

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