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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.

A141181 Primes of the form 2*x^2+3*x*y-4*y^2 (as well as of the form 2*x^2+7*x*y+y^2).

Table of values

n a(n)
1 2
2 5
3 23
4 31
5 37
6 41
7 43
8 59
9 61
10 73
11 83
12 103
13 107
14 113
15 127
16 131
17 139
18 163
19 173
20 197
21 223
22 241
23 251
24 269
25 271
26 277
27 283
28 307
29 337
30 349
31 353
32 359
33 367
34 373
35 379
36 389
37 401
38 409
39 419
40 431
41 433
42 443
43 449
44 461
45 467
46 487
47 491
48 523
49 541
50 569
51 599
52 607
53 613
54 617
55 619

List of values

[2, 5, 23, 31, 37, 41, 43, 59, 61, 73, 83, 103, 107, 113, 127, 131, 139, 163, 173, 197, 223, 241, 251, 269, 271, 277, 283, 307, 337, 349, 353, 359, 367, 373, 379, 389, 401, 409, 419, 431, 433, 443, 449, 461, 467, 487, 491, 523, 541, 569, 599, 607, 613, 617, 619]

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

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