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.

A023261 Primes that remain prime through 2 iterations of function f(x) = 8x + 3.

Table of values

n a(n)
1 5
2 13
3 31
4 61
5 101
6 103
7 163
8 191
9 233
10 241
11 251
12 433
13 461
14 643
15 751
16 761
17 821
18 863
19 983
20 1021
21 1153
22 1193
23 1283
24 1291
25 1531
26 1543
27 1861
28 2281
29 2543
30 2903
31 2953
32 3271
33 3373
34 3673
35 3701
36 3733
37 3793
38 3923
39 4003
40 4241
41 4283
42 4751
43 5333
44 5581
45 5711
46 5801
47 5813

List of values

[5, 13, 31, 61, 101, 103, 163, 191, 233, 241, 251, 433, 461, 643, 751, 761, 821, 863, 983, 1021, 1153, 1193, 1283, 1291, 1531, 1543, 1861, 2281, 2543, 2903, 2953, 3271, 3373, 3673, 3701, 3733, 3793, 3923, 4003, 4241, 4283, 4751, 5333, 5581, 5711, 5801, 5813]