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.

A087291 Number of pairs of polynomials (f,g) in GF(2)[x] satisfying 1 <= deg(f) <= n, 1 <= deg(g) <= n and gcd(f,g) = 1.

Table of values

n a(n)
0 0
1 2
2 18
3 98
4 450
5 1922
6 7938
7 32258
8 130050
9 522242
10 2093058
11 8380418
12 33538050
13 134184962
14 536805378
15 2147352578
16 8589672450
17 34359214082
18 137437904898
19 549753716738
20 2199019061250

List of values

[0, 2, 18, 98, 450, 1922, 7938, 32258, 130050, 522242, 2093058, 8380418, 33538050, 134184962, 536805378, 2147352578, 8589672450, 34359214082, 137437904898, 549753716738, 2199019061250]