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.

A141338 Primes of the form x^2+9*x*y-3*y^2 (as well as of the form 7*x^2+11*x*y+y^2).

Table of values

n a(n)
1 7
2 19
3 31
4 67
5 97
6 103
7 109
8 157
9 163
10 193
11 211
12 283
13 307
14 349
15 373
16 379
17 397
18 421
19 439
20 541
21 547
22 577
23 607
24 661
25 691
26 727
27 733
28 751
29 769
30 811
31 853
32 877
33 907
34 919
35 937
36 997
37 1033
38 1039
39 1051
40 1063
41 1087
42 1093
43 1117
44 1123
45 1213
46 1237
47 1249
48 1279
49 1291
50 1303

List of values

[7, 19, 31, 67, 97, 103, 109, 157, 163, 193, 211, 283, 307, 349, 373, 379, 397, 421, 439, 541, 547, 577, 607, 661, 691, 727, 733, 751, 769, 811, 853, 877, 907, 919, 937, 997, 1033, 1039, 1051, 1063, 1087, 1093, 1117, 1123, 1213, 1237, 1249, 1279, 1291, 1303]

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

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