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.

A023302 Primes that remain prime through 4 iterations of function f(x) = 2x + 1.

Table of values

n a(n)
1 2
2 89
3 179
4 53639
5 53849
6 61409
7 63419
8 66749
9 126839
10 127139
11 143609
12 167729
13 186149
14 206369
15 254279
16 268049
17 296099
18 340919
19 405269
20 422069
21 446609
22 539009
23 594449
24 607319
25 658349
26 671249
27 725009
28 775949
29 810539
30 810809
31 812849
32 819509

List of values

[2, 89, 179, 53639, 53849, 61409, 63419, 66749, 126839, 127139, 143609, 167729, 186149, 206369, 254279, 268049, 296099, 340919, 405269, 422069, 446609, 539009, 594449, 607319, 658349, 671249, 725009, 775949, 810539, 810809, 812849, 819509]

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

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