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.

A356178 Numbers k such that both Sum_{i=1..k} i*prime(i) and Sum_{i=1..k} (k+1-i)*prime(i) are prime.

Table of values

n a(n)
1 1
2 3
3 199
4 351
5 1583
6 1955
7 2579
8 2627
9 3251
10 3407
11 3503
12 5311
13 6359
14 6819
15 7295
16 7547
17 8791
18 9663
19 10143
20 10591
21 11499
22 11579
23 12199
24 12443
25 14527
26 15563
27 15583
28 16051
29 16543
30 16655
31 18047
32 18319
33 20691
34 20847
35 23979
36 24079
37 24575
38 25667
39 26491
40 28235
41 30395
42 30627
43 32235
44 32259
45 33091
46 33287
47 33527

List of values

[1, 3, 199, 351, 1583, 1955, 2579, 2627, 3251, 3407, 3503, 5311, 6359, 6819, 7295, 7547, 8791, 9663, 10143, 10591, 11499, 11579, 12199, 12443, 14527, 15563, 15583, 16051, 16543, 16655, 18047, 18319, 20691, 20847, 23979, 24079, 24575, 25667, 26491, 28235, 30395, 30627, 32235, 32259, 33091, 33287, 33527]