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.

A029563 Quasi-Carmichael numbers to base -3: squarefree composites n such that for every prime p that divides n, p+3 divides n+3.

Table of values

n a(n)
1 165
2 357
3 1885
4 2397
5 3965
6 9447
7 11877
8 30597
9 37245
10 49657
11 57405
12 73437
13 75517
14 76857
15 106485
16 127677
17 146605
18 155397
19 187485
20 211117
21 223197
22 223737
23 301597
24 304917
25 312477
26 378397
27 406077
28 413445
29 460317
30 543197
31 728637
32 737877
33 765697

List of values

[165, 357, 1885, 2397, 3965, 9447, 11877, 30597, 37245, 49657, 57405, 73437, 75517, 76857, 106485, 127677, 146605, 155397, 187485, 211117, 223197, 223737, 301597, 304917, 312477, 378397, 406077, 413445, 460317, 543197, 728637, 737877, 765697]

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

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