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.

A032353 Numbers k such that 7*2^k+1 is prime.

Table of values

n a(n)
1 2
2 4
3 6
4 14
5 20
6 26
7 50
8 52
9 92
10 120
11 174
12 180
13 190
14 290
15 320
16 390
17 432
18 616
19 830
20 1804
21 2256
22 6614
23 13496
24 15494
25 16696
26 22386
27 54486
28 88066
29 95330
30 207084
31 283034
32 561816
33 804534
34 811230
35 1491852
36 2139912
37 2167800
38 2915954
39 3015762
40 3511774
41 5775996

List of values

[2, 4, 6, 14, 20, 26, 50, 52, 92, 120, 174, 180, 190, 290, 320, 390, 432, 616, 830, 1804, 2256, 6614, 13496, 15494, 16696, 22386, 54486, 88066, 95330, 207084, 283034, 561816, 804534, 811230, 1491852, 2139912, 2167800, 2915954, 3015762, 3511774, 5775996]

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

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