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.

A215968 Smallest k > 0 such that 240*k*p+1 , 6*k*p*(240*k*p+1)+1 , and 40*(6*k*p*(240*k*p+1)+1)+1 are prime or 0 if no solution, where p = prime(n).

Table of values

n a(n)
1 11
2 21
3 36
4 8
5 2
6 140
7 389
8 45
9 56
10 145
11 235
12 71
13 0
14 121
15 155
16 56
17 280
18 80
19 109
20 37
21 187
22 217
23 21
24 97
25 89
26 7
27 66
28 28
29 2
30 166
31 26
32 101
33 129
34 93
35 148
36 51
37 39
38 71
39 28
40 139
41 65
42 20
43 78
44 14
45 149
46 3
47 411
48 516

List of values

[11, 21, 36, 8, 2, 140, 389, 45, 56, 145, 235, 71, 0, 121, 155, 56, 280, 80, 109, 37, 187, 217, 21, 97, 89, 7, 66, 28, 2, 166, 26, 101, 129, 93, 148, 51, 39, 71, 28, 139, 65, 20, 78, 14, 149, 3, 411, 516]

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

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