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.

A141778 Primes of the form 4*x^2 + 3*x*y - 5*y^2 (as well as of the form 8*x^2 + 11*x*y + y^2).

Table of values

n a(n)
1 2
2 5
3 11
4 17
5 47
6 53
7 67
8 71
9 73
10 79
11 89
12 97
13 107
14 109
15 131
16 139
17 157
18 167
19 173
20 179
21 199
22 223
23 227
24 233
25 251
26 257
27 263
28 269
29 271
30 277
31 283
32 307
33 311
34 317
35 331
36 347
37 367
38 373
39 401
40 409
41 443
42 449
43 461
44 463
45 467
46 479
47 487
48 509
49 523
50 587
51 601
52 607
53 613
54 619
55 631

List of values

[2, 5, 11, 17, 47, 53, 67, 71, 73, 79, 89, 97, 107, 109, 131, 139, 157, 167, 173, 179, 199, 223, 227, 233, 251, 257, 263, 269, 271, 277, 283, 307, 311, 317, 331, 347, 367, 373, 401, 409, 443, 449, 461, 463, 467, 479, 487, 509, 523, 587, 601, 607, 613, 619, 631]

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

Content is available under The OEIS End-User License Agreement.