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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.

A076199 a(n) equals the least s>0 such that n!! + s^2 is prime.

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 2
6 5
7 2
8 5
9 8
10 7
11 2
12 19
13 4
14 17
15 58
16 11
17 2
18 17
19 8
20 31
21 32
22 17
23 8
24 13
25 4
26 23
27 4
28 23
29 2
30 53
31 86
32 37
33 32
34 23
35 164
36 79
37 86
38 23
39 2
40 229
41 94
42 89
43 2
44 89
45 4
46 83
47 4
48 149
49 134
50 31
51 8
52 83
53 4
54 53
55 206
56 227
57 206
58 283
59 64
60 43
61 274
62 37
63 128
64 263
65 214
66 163
67 146
68 167
69 326
70 157
71 178

List of values

[1, 1, 2, 3, 2, 5, 2, 5, 8, 7, 2, 19, 4, 17, 58, 11, 2, 17, 8, 31, 32, 17, 8, 13, 4, 23, 4, 23, 2, 53, 86, 37, 32, 23, 164, 79, 86, 23, 2, 229, 94, 89, 2, 89, 4, 83, 4, 149, 134, 31, 8, 83, 4, 53, 206, 227, 206, 283, 64, 43, 274, 37, 128, 263, 214, 163, 146, 167, 326, 157, 178]

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

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