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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.

A343423 Prime numbers p such that Euclidean distance from origin to p in hexagonal grid sets a new record. Number '1' is placed at the origin and '2' at (1, 0). Number 'm' (m >= 3) is placed by moving one unit forward in the direction from 'm-2' to 'm-1', if m - 1 is not a prime; otherwise, making 1/6 turn counterclockwise at 'm-1' followed by moving one unit forward.

Table of values

n a(n)
1 2
2 3
3 5
4 7
5 11
6 29
7 31
8 59
9 89
10 127
11 131
12 157
13 191
14 193
15 223
16 227
17 251
18 257
19 409
20 521
21 719
22 757
23 797
24 809
25 877
26 881
27 967
28 971
29 1009
30 1013
31 1049
32 1087
33 1091
34 1117
35 1123
36 1277
37 1301
38 1361
39 1409
40 1423
41 1447
42 1451
43 1523
44 1531
45 1657
46 1693
47 1697
48 1699
49 5273
50 5323

List of values

[2, 3, 5, 7, 11, 29, 31, 59, 89, 127, 131, 157, 191, 193, 223, 227, 251, 257, 409, 521, 719, 757, 797, 809, 877, 881, 967, 971, 1009, 1013, 1049, 1087, 1091, 1117, 1123, 1277, 1301, 1361, 1409, 1423, 1447, 1451, 1523, 1531, 1657, 1693, 1697, 1699, 5273, 5323]

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

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