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.

A326230 Least k > 1 such that k^n is a twin rank (cf. A002822: 6*k^n +- 1 are twin primes).

Table of values

n a(n)
1 2
2 5
3 28
4 70
5 2
6 1820
7 110
8 1850
9 2520
10 220
11 2023
12 9415
13 647
14 2880
15 2562
16 3895
17 2
18 51240
19 525
20 3750
21 147
22 2350
23 355
24 4480
25 2588
26 3370
27 38157
28 1185
29 1473
30 12530
31 4338
32 1540
33 1988
34 535
35 102
36 22606
37 13773
38 18895
39 16373
40 2635
41 20428
42 76300
43 23037
44 29005
45 11078

List of values

[2, 5, 28, 70, 2, 1820, 110, 1850, 2520, 220, 2023, 9415, 647, 2880, 2562, 3895, 2, 51240, 525, 3750, 147, 2350, 355, 4480, 2588, 3370, 38157, 1185, 1473, 12530, 4338, 1540, 1988, 535, 102, 22606, 13773, 18895, 16373, 2635, 20428, 76300, 23037, 29005, 11078]

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

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