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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.

A063699 Positions of negative coefficients in cyclotomic polynomial Phi_n(x), A063698 in binary.

Table of values

n a(n)
0 0
1 1
2 0
3 0
4 0
5 0
6 10
7 0
8 0
9 0
10 1010
11 0
12 100
13 0
14 101010
15 10010010
16 0
17 0
18 1000
19 0
20 1000100
21 100100010010
22 1010101010
23 0
24 10000
25 0
26 101010101010
27 0
28 10001000100
29 0
30 111000
31 0
32 0
33 10010010010010010010
34 1010101010101010
35 100001010010100101000010

List of values

[0, 1, 0, 0, 0, 0, 10, 0, 0, 0, 1010, 0, 100, 0, 101010, 10010010, 0, 0, 1000, 0, 1000100, 100100010010, 1010101010, 0, 10000, 0, 101010101010, 0, 10001000100, 0, 111000, 0, 0, 10010010010010010010, 1010101010101010, 100001010010100101000010]

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

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