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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.

A092219 Least even k such that the Euler number E(k) is divisible by prime(n), or 0 if there is no k.

Table of values

n a(n)
1 0
2 0
3 4
4 0
5 0
6 12
7 16
8 10
9 0
10 28
11 22
12 36
13 40
14 12
15 14
16 52
17 0
18 6
19 26
20 28
21 72
22 18
23 0
24 88
25 96
26 62
27 0
28 0
29 108
30 112
31 0
32 0
33 42
34 128
35 146
36 0
37 156
38 0
39 0
40 172
41 0
42 180
43 0
44 74
45 196
46 0
47 0
48 132
49 0
50 228
51 232
52 0
53 210
54 126
55 256
56 212
57 268
58 0
59 8
60 280
61 0
62 292
63 90
64 86
65 312
66 316
67 0
68 336
69 0
70 18
71 70

List of values

[0, 0, 4, 0, 0, 12, 16, 10, 0, 28, 22, 36, 40, 12, 14, 52, 0, 6, 26, 28, 72, 18, 0, 88, 96, 62, 0, 0, 108, 112, 0, 0, 42, 128, 146, 0, 156, 0, 0, 172, 0, 180, 0, 74, 196, 0, 0, 132, 0, 228, 232, 0, 210, 126, 256, 212, 268, 0, 8, 280, 0, 292, 90, 86, 312, 316, 0, 336, 0, 18, 70]

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

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