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.

A168027 Noncomposite numbers in the southern ray of the Ulam spiral as oriented on the March 1964 cover of Scientific American.

Table of values

n a(n)
0 1
1 23
2 163
3 281
4 431
5 613
6 827
7 2003
8 2377
9 3221
10 3691
11 6521
12 7877
13 10151
14 10973
15 11827
16 12713
17 17623
18 18701
19 23333
20 24571
21 25841
22 27143
23 28477
24 38711
25 43577
26 45263
27 48731
28 50513
29 65921
30 72227
31 81083
32 85703
33 95327
34 97813
35 102881
36 124433

List of values

[1, 23, 163, 281, 431, 613, 827, 2003, 2377, 3221, 3691, 6521, 7877, 10151, 10973, 11827, 12713, 17623, 18701, 23333, 24571, 25841, 27143, 28477, 38711, 43577, 45263, 48731, 50513, 65921, 72227, 81083, 85703, 95327, 97813, 102881, 124433]

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

Content is available under The OEIS End-User License Agreement.