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.

A063671 Positions of nonzero coefficients in cyclotomic polynomial Phi_n(x), A063670 in binary.

Table of values

n a(n)
0 10
1 11
2 11
3 111
4 101
5 11111
6 111
7 1111111
8 10001
9 1001001
10 11111
11 11111111111
12 10101
13 1111111111111
14 1111111
15 110111011
16 100000001
17 11111111111111111
18 1001001
19 1111111111111111111
20 101010101
21 1101101011011
22 11111111111

List of values

[10, 11, 11, 111, 101, 11111, 111, 1111111, 10001, 1001001, 11111, 11111111111, 10101, 1111111111111, 1111111, 110111011, 100000001, 11111111111111111, 1001001, 1111111111111111111, 101010101, 1101101011011, 11111111111]

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

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